Gaya APA

Jefferies, J, P. (1990). Understanding hospitality law (2nd ed.). East Lansing, Michigan: the Educational Institute of the American Hotel and Motel Association.

Gaya MLA

Jefferies, Jack, P.. "Understanding hospitality law". 2nd ed. East Lansing, Michigan: the Educational Institute of the American Hotel and Motel Association, 1990. BUKU.