TY  - BOOK
AU  - Acquaah, George.
TI  - Principles of crop production: theory, techniques, and technology 
SN  - 130221333
U1  - 631 21
PY  - 2002///
CY  - Upper Saddle River, N.J.
PB  - Prentice Hall
KW  - Field crops.;Food crops.;Crop yields
N1  - Includes bibliographical references and index
ER  -