TY  - BOOK
AU  - Wolfe,Thomas Kennerly
AU  - Kipps,Michael Smith
TI  - Production of field crops: a textbook of agronomy 
T2  - McGraw-Hill publications in the agricultural sciences
U1  - 633 23
PY  - 1959///
CY  - New York
PB  - McGraw-Hill
KW  - Field crops
KW  - Agriculture
KW  - United States
N1  - Includes bibliography
ER  -