TY  - BOOK
AU  - Michael, A. M.
AU  - Ojha, T.P.,
TI  - Principles of agricultural engineering: survey, irrigation, drai nage, soil and water conservation 
SN  - 8186321152
U1  - 630 
PY  - 1999///
CY  - New Delhi
PB  - Jain Brothers
KW  - agricultural engineering
N1  - Includes index
ER  -