Kotas, R. (1972). Accounting in the hotel and catering industry (3rd ed.). International Textbook Co..
Chicago Style (17. basım) AtıfKotas, Richard. Accounting in the Hotel and Catering Industry. 3rd ed. London: International Textbook Co., 1972.
MLA (8th ed.) AtıfKotas, Richard. Accounting in the Hotel and Catering Industry. 3rd ed. International Textbook Co., 1972.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..