APA-referens (7:e uppl.)

Walker, J. R. (2002). Introduction to hospitality (3rd ed.). Prentice Hall.

Chicago-referens (17:e uppl.)

Walker, John R. Introduction to Hospitality. 3rd ed. Upper Saddle River, N.J: Prentice Hall, 2002.

MLA-referens (9:e uppl.)

Walker, John R. Introduction to Hospitality. 3rd ed. Prentice Hall, 2002.