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21.
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El problema del origen de los mundos by Papp, Desiderio, 1897. Series: Austral ; 980Material type:  Text Language: Spanish Publication details: Buenos Aires : Espasa-Calpe, 1950Availability: Items available for loan: Biblioteca Central UNNECall number: 523 P213 ej.1 (1).
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22.
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Planetas y satélites by Lequeux, James. Material type: Text Language: Spanish Publication details: Buenos Aires : Columba, 1969Availability: Items available for loan: Biblioteca Central UNNECall number: 523 L613 ej.1 (1).
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23.
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The birth and death of the sun by Gamow, George. Material type: Text Language: en Publication details: New York : A. Mentor Book, 1954Availability: Items available for loan: Biblioteca Central UNNECall number: 523 G194 ej.1 (1).
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24.
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Elementos de cosmografía by Charola, Florencio. Edition: 7a ed.Material type: Text Language: Spanish Publication details: Buenos Aires : Kapelusz, 1959Availability: Items available for loan: Biblioteca Central UNNECall number: 523 CH469 ej.1 (1).
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25.
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Planetas, estrellas y espacio by Chamberlain, Joseph Miles | Museo Americano de Historia Natural de Nueva York | Nicholson, Thomas D. Series: Enciclopedia Científica. Ciencia CreativaEdition: 3a ed.Material type: Text Language: Spanish Publication details: México : Fondo de Cultura Económica, 1966Availability: Items available for loan: Biblioteca Central UNNECall number: 523 CH443 ej.1 (1).
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26.
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Esquema del universo by Crowther, James Gerald, 1899. Series: Ciencia y VidaMaterial type: Text Language: Spanish Publication details: Buenos Aires : Omega, 1941Availability: Items available for loan: Biblioteca Central UNNECall number: 523 C953 ej.1 (1).
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27.
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El cosmos by Bondi, Hermann, 1919 | Míguez, Néstor [tr.]. Series: Ciencia Joven ; 13Material type: Text Language: Spanish Publication details: Buenos Aires : Editorial Universitaria de Buenos Aires, 1962Availability: Items available for loan: Biblioteca Central UNNECall number: 523 B711 c ej.1 (1).
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28.
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La via láctea by Bok, Bart J | Bok, Priscila F | Míguez, Néstor [tr.]. Series: Manuales de Eudeba. AstronomíaMaterial type: Text Language: Spanish Publication details: Buenos Aires : Editorial Universitaria de Buenos Aires, 1963Availability: Items available for loan: Biblioteca Central UNNECall number: 523 B686 ej.1 (1).
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29.
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Nuevo manual de los cielos by Bernhard, Hubert J | Bennet, Dorothy A | Rice, Hugh S | Feinstein, Alejandro [tr.]. Series: Ciencia ActivaMaterial type: Text Language: Spanish Publication details: Buenos Aires : Editorial Universitaria de Buenos Aires, 1961Availability: Items available for loan: Biblioteca Central UNNECall number: 523 B527 n ej.1 (1).
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30.
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