TY  - BOOK
AU  - Donald  B. Williams
TI  - Agricultural Extension
SN  - 522-83841-3
U1  - 630.715 
PY  - 1968///
CY  - London
PB  - Melbourne University Press
N1  - Donald  B. Williams: Agricultural Extension.  London.  Melbourne University Press, 1968. 522-83841-3--(630.715WIL)
ER  -