TY  - BOOK
ED  - Food and Agriculture Organization of the United Nations
TI  - Report on agro-ecological zones project
T2  - World soil resources report
SN  - 9251011729
U1  - 631.47 21st ed.
PY  - 1982///
CY  - Rome
PB  - Food and Agriculture Organization of the United Nations
KW  - Agricultural ecology
N1  - V. 1: Methodology and results for Africa
ER  -