TY  - BOOK
ED  - Food and Agriculture Organization of the United Nations.
ED  - United Nations Development Programme.
TI  - Final report on a soil fertility survey and the establishment of a s oil fertility unit in Iran / 
PY  - 1966///
CY  - Rome : 
PB  - Food and Agriculture Organization of the United Nations [a nd] United Nations Development Program, 
KW  - Soil fertility
N1  -  "FAO/SF: 20/IRA."
ER  -