APA
Dittmer P. R., Griffin G. G., . (1989). Principles of food, beverage, and labor cost controls for hotels and restaurants. New York, N.Y: Van Nostrand Reinhold.
Chicago
Dittmer Paul R, Griffin Gerald G, . 1989. Principles of food, beverage, and labor cost controls for hotels and restaurants. New York, N.Y: Van Nostrand Reinhold.
Harvard
Dittmer P. R., Griffin G. G., . (1989). Principles of food, beverage, and labor cost controls for hotels and restaurants. New York, N.Y: Van Nostrand Reinhold.
MLA
Dittmer Paul R, Griffin Gerald G, . Principles of food, beverage, and labor cost controls for hotels and restaurants. New York, N.Y: Van Nostrand Reinhold. 1989.