TY  - BOOK
AU  - Den Ban, A. W.
AU  - Hawkins, H. S.
TI  - Agricultural extension 
SN  - 0582028833
AV  - S544 .B2513 1988
PY  - 1985///
CY  - New York
PB  - Longman Scientific Technical
KW  - Agriculture (General)
N1  - Includes Index
ER  -