TY  - BOOK
AU  - Kipps,Michael Smith
AU  - Wolfe,Thomas Kennerly
TI  - Production of field crops: a textbook of agronomy 
T2  - McGraw-Hill publications in the agricultural sciences
AV  - SB185 .K56 1970
U1  - 633/.00973 
PY  - 1959///
CY  - New York
PB  - McGraw-Hill
KW  - Agronomy
KW  - United States
KW  - Field crops
N1  - Fifth ed. by T. K. Wolfe and M. S. Kipps; Includes bibliographies
ER  -