TY  - BOOK
AU  - Sanchez, P.A.
TI  - A review of soils research in tropical Latin America
U1  - 631.4(8=6-213)(047.1) L2 
PY  - 1972///
CY  - Springfield
PB  - NTIS
KW  - P.A. Sanchez
KW  - Soil science
ER  -