TY  - BOOK
AU  - Roling, Niels.
TI  - Extension science; information systems in agricultural development
T2  - Wye Studies in Agricultural and Rural Development
U1  - 374.14:659.2:63.001.6 M8 
PY  - 1988///
CY  - New York
PB  - Cambridge University Press
KW  - Niels Roling
KW  - Extension activities,Information Services,Agricultural development
ER  -