TY  - BOOK
AU  - A.M. Michael
AU  -  T.P. Ojha, 
TI  - Principles of agricultural engineering. Vol 2, Surveying, irrigation, agricultural drainage, soil and water conserv
U1  - 631.3 
PY  - 2003///
CY  - Jodhpur
PB  - Jain Brothers
ER  -