Dyfyniad APA

Richardson, T. M., & Nicodemus, W. R. (1981). Sanitation for food service workers (3rd ed.). Van Nostrand Reinhold Company.

Dyfyniad Arddull Chicago

Richardson, Treva M., and Wade R. Nicodemus. Sanitation for Food Service Workers. 3rd ed. New York: Van Nostrand Reinhold Company, 1981.

Dyfyniad MLA

Richardson, Treva M., and Wade R. Nicodemus. Sanitation for Food Service Workers. 3rd ed. Van Nostrand Reinhold Company, 1981.

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