TY  - BOOK
AU  - Swanson,Burton E., [ed.]
TI  - Agricultural extension: a reference manual 
SN  - 925101504X (pbk.)
AV  - S544 .A58 1984
U1  - 630.715 19
PY  - 1984///
CY  - Rome
PB  - Food and Agriculture Organization of the United Nations
KW  - Agricultural extension work
KW  - Handbooks, manuals, etc
N1  - Bibliography: p. 232-240
ER  -