Educational tours : a guide for extension and village workers in many countries /
Educational tours : a guide for extension and village workers in many countries /
Federal Extension Service, U.S. Dept. of Agriculture, in cooperation with Agency for International Development, U.S. Dept. of State.
- [S.l.] : Federal Extension Service, U.S. Dept. of Agriculture, 1967.
- 12 p. : ill.
Agricultural extension work.
Agricultural extension work.