Cita APA

Robert J Ames. (1967). Visuals in agricultural extension programs. Washington: International Cooperation Administration.

Chicago Style Citation

Robert J Ames. Visuals in Agricultural Extension Programs. Washington: International Cooperation Administration, 1967.

Cita MLA

Robert J Ames. Visuals in Agricultural Extension Programs. Washington: International Cooperation Administration, 1967.

Atenció: Aquestes cites poden no estar 100% correctes.