Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.