TY  - BOOK
ED  - Commonwealth Conference on Tropical and Subtropical Soils (
TI  - Proceedings of the first..
T2  - Technical communication
U1  - 631.4913 
PY  - 1949///
CY  - Harpenden
PB  - Commonwealth Bureau of Soil Science
KW  - Suelos tropicales
KW  - Suelos
KW  - Congresos
ER  -