An introduction to extension delivery systems /
Valera, Jaime B.
An introduction to extension delivery systems / Valera marinez Plopino. - Manila : Island, c1987. - 188 p. : 23 cm.
9711007088
S 544 / .V162 1987
FIL 338.16 / In8 1987
An introduction to extension delivery systems / Valera marinez Plopino. - Manila : Island, c1987. - 188 p. : 23 cm.
9711007088
S 544 / .V162 1987
FIL 338.16 / In8 1987