TY  - BOOK
ED  - Iowa State University of Science and Technology. Agricultural and Home Economics Experiment Stattion
TI  - Special report: Irrigated corn yields in the north central region of the United States
U1  - 630.72(777) 
PY  - 1970///
CY  - Iowa
PB  - Iowa State University
KW  - Agriculture
KW  - Corn yields
KW  - Study and teaching
KW  - Unites States
ER  -