Main type organization found in extension work and related social factor
Niederfrank, E.J.
Main type organization found in extension work and related social factor - Washington 1955 - 1-20 p. - Organization United States Depatment of Agriculture, Federal Extension service. Circular No. 500 .
Main type organization found in extension work and related social factor - Washington 1955 - 1-20 p. - Organization United States Depatment of Agriculture, Federal Extension service. Circular No. 500 .