TY  - BOOK
AU  - Roling, Niels G.
TI  - Extension science: information systems in agricultural developme nt 
SN  - 0521348870 (pbk)
U1  - 630.715 ROL 21
PY  - 1988///
CY  - Cambridge
PB  - Cambridge university Press
KW  - Agricultural extension work
KW  - Technological innovations
KW  - Information storage and retrieval systems
KW  - Agriculture
N1  - Includes bibliographical references (p. 216-224) and index
ER  -