Abbey,James R. (1998). Hospitality sales and advertising (3rd ed.). Michigan: American Hotel & Motel Association Educational Institute.
Chicago Stili AlıntıAbbey,James R. Hospitality Sales and Advertising. 3rd ed. Michigan: American Hotel & Motel Association Educational Institute, 1998.
MLA AlıntıAbbey,James R. Hospitality Sales and Advertising. 3rd ed. Michigan: American Hotel & Motel Association Educational Institute, 1998.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..