Citazione Stile APA (7a Edizione)

Ketterer, M. (1991). How to manage a successful catering business (2nd ed.). Van Nostrand Reinhold.

Citazione stile Chigago Style (17a edizione)

Ketterer, Manfred. How to Manage a Successful Catering Business. 2nd ed. New York: Van Nostrand Reinhold, 1991.

Citatione MLA (9a ed.)

Ketterer, Manfred. How to Manage a Successful Catering Business. 2nd ed. Van Nostrand Reinhold, 1991.