Gaya APA

Hart, C, W., A.Troy, D. (1986). HOSPITALITY MANAGEMENT LIBRARY : MARKETING (Revised Edition) . Michigan: Educational Institute of the American Hotel & Motel Association.

Gaya MLA

Hart, Christopher, W.L.., A.Troy, David. "HOSPITALITY MANAGEMENT LIBRARY : MARKETING (Revised Edition)". Michigan: Educational Institute of the American Hotel & Motel Association, 1986. Text.