TY  - BOOK
AU  - Umar Farooq
AU  - Muhammad Sharif   jt auth
AU  - Erenstein, Olaf  jt auth
TI  - Adoption and impacts of zero-tallage in the rice-wheat zone of irrigated Punjab, Pakistan
SN  - 9789706481573
U1  - P 
PY  - 2007///
CY  - New Delhi
PB  - CIMMYT
ER  -