TY  - BOOK
AU  - Blackburn,Donald J.
TI  - Extension handbook :processes and practices / (Acc. 3387): processes and practices 
SN  - 1550770527
U1  - REF/SD 300 BLA  22
PY  - 1994///
CY  - Toronto
PB  - Thompson Educational Pub.
KW  - Agricultural extension work
ER  -