TY  - BOOK
AU  - W FLAIG
TI  - ORGANIC MATERIALS AND SOIL PRODUCTIVITY
SN  - 9251005109
U1  - P631.417F598Q 
PY  - 1977///
CY  - ROME
PB  - FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS
KW  - ORGANIC MATERIALS AND SOIL PRODUCTIVITY
ER  -