APA

Dittmer Paul R, Dittmer P. & Griffin G. G. (1999). Principles of food, beverage, and labor cost controls: for hotels and restaurants. New York: John Wiley & Sons.

Chicago

Dittmer Paul R, Dittmer Paul and Griffin Gerald G. 1999. Principles of food, beverage, and labor cost controls: for hotels and restaurants. New York: John Wiley & Sons.

Harvard

Dittmer Paul R, Dittmer P. and Griffin G. G. (1999). Principles of food, beverage, and labor cost controls: for hotels and restaurants. New York: John Wiley & Sons.

MLA

Dittmer Paul R, Dittmer Paul and Griffin Gerald G. Principles of food, beverage, and labor cost controls: for hotels and restaurants. New York: John Wiley & Sons. 1999.