Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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