TY  - BOOK
AU  - Gaffney, Mason
TI  - Extractive resources and taxation
PY  - 1967///
CY  - Madison : , Milwaukee, 
PB  - Mason Gaffney ; 
KW  - POLITICA FISCAL
KW  - TRIBUTACION
KW  - LEGISLACION ECONOMICA
KW  - LEYES IMPOSITIVAS
ER  -