TY  - BOOK
AU  - Ashok Yadav
AU  -  R.K. Malik N.K. Bansal  Raj K. Gupta
TI  - Manual for using zero-till seed-cum-fertilizer drill and zero-till drill-cum-bed planter
U1  - 633.18 
PY  - 2002///
CY  - New Delhi
PB  - Rice Wheat Cosrtium For the Indo Gangeti Plains ( ICAR )
ER  -