TY  - BOOK
AU  - Acquaah,George
TI  - Principles of crop production: theory , techniques and technology 
SN  - 9788120343306
U1  - 631 22
PY  - 2011///
CY  - New Delhi
PB  - PHI Learning
KW  - Crop yields
KW  - Field crops
KW  - Food crops
N1  - Includes bibliographical references and index
ER  -