TY  - BOOK
AU  - Gourou, Pierre.
TI  - The tropical world; its social and economic conditions and its future status
T2  - Longman. Geographies for advanced study
U1  - 631.0913 
PY  - 1966///
CY  - London
PB  - Longman
KW  - Agricultura
KW  - Trópicos
KW  - Suelos tropicales
ER  -