TY  - BOOK
AU  - English Burton C Ed.
TI  - Future agricultural technology and resource conser
T2  - R C A Symposium 1982
U1  - U672(J).73.N8, M4 
PY  - 1984///
CY  - Iowa
PB  - Iowa State University Press       
KW  - Agricultural Geography
N1  - Bib chapterwise
ER  -