TY  - GEN
AU  - Peterson, H B
AU  - Thorne, D W
TI  - Irrigated soils their fertility and management
U1  - 631.4 THO 
CY  - Bombay, Tata Mc Graw-Hill Publishing Company Ltd.
KW  - Irrigated soils/soil-fertility/soil management/soil conservation/soil science
ER  -