APA

Dittmer P., Griffin G. G., . (1994). Principles of food, beverage, and labor cost controls for hotels and restaurants. New York: Van Nostrand Reinhold.

Chicago

Dittmer Paul, Griffin Gerald G, . 1994. Principles of food, beverage, and labor cost controls for hotels and restaurants. New York: Van Nostrand Reinhold.

Harvard

Dittmer P., Griffin G. G., . (1994). Principles of food, beverage, and labor cost controls for hotels and restaurants. New York: Van Nostrand Reinhold.

MLA

Dittmer Paul, Griffin Gerald G, . Principles of food, beverage, and labor cost controls for hotels and restaurants. New York: Van Nostrand Reinhold. 1994.