TY  - BOOK
AU  - Gregor Howard F
TI  - Geography of agriculture :  Themes in research   
T2  - Prentice-Hall Foundations Of Economic Geography Series
U1  - U672(J)b4, L0 
PY  - 1970///
CY  - Englewood
PB  - Cliffs N J Prentice Hall U S A   
KW  - Agricultural Geography
ER  -