APA-čujuhus (7. p.)
Walker, J. R. (2009). Introduction to hospitality (5th ed.). Pearson.
Chicago-čujuhus (17. p.)
Walker, John R. Introduction to Hospitality. 5th ed. New Jersey: Pearson, 2009.
MLA-čujuhus (9. p.)
Walker, John R. Introduction to Hospitality. 5th ed. Pearson, 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.