TY  - BOOK
AU  - Röling,Niels G.
TI  - Extension science: information systems in agricultural development / (Acc: 2180)
SN  - 0521344379
U1  - 303.9 ROL 22
PY  - 1988///
CY  - Cambridge [England], New York
PB  - Cambridge University Press
KW  - Agricultural extension work
KW  - Information storage and retrieval systems
ER  -