Gaya APA

Feinstein, A, H., Stefanelli, J, M. (2008). Purchasing : selection and procurement for the hospitality industry (7th ed.). New Jersey: John Wiley and Sons, Inc..

Gaya MLA

Feinstein, Andrew, Hale., Stefanelli, John, M.. "Purchasing : selection and procurement for the hospitality industry". 7th ed. New Jersey: John Wiley and Sons, Inc., 2008. BUKU.