TY  - BOOK
AU  - Govinda Rajan, S V
AU  - Gopala Rao, H. G
TI  - Soil and crop productivity
SN  - 0210271000
U1  - 631.47/GOV 
PY  - 1971///
CY  - Bombay
PB  - Asia Publishing House
KW  - soil Science
KW  - soils
ER  -