Gaya APA

Dittmer, P, R. (1984). Principles of food beverage & labor cost controls (Cet.1). New York: Van Nostrand Reinhold Company.

Gaya MLA

Dittmer, Paul, R. "Principles of food beverage & labor cost controls". Cet.1 New York: Van Nostrand Reinhold Company, 1984. Monograf.