An Introduction to extension delivery systems /
An Introduction to extension delivery systems /
edited by Jaime B. Valera, Vicente A. Martinez, Ramiro F. Plopino.
- Manila: Island Pub.House, Inc., 1987
- 188 pages : illustrations ; 23 cm.
Includes index.
9711007088
Agricultural extension work ----Philippines.
FIL S 544.5 / .P5I58 1987
Includes index.
9711007088
Agricultural extension work ----Philippines.
FIL S 544.5 / .P5I58 1987