Nitschke, A. A., & Frye, W. (2008). Managing housekeeping operations (3.). American hotel & lodging educational institue.
Chicago-čujuhus (17. p.)Nitschke, Aleta A., juo Willam Frye. Managing Housekeeping Operations. 3. Michigan: American hotel & lodging educational institue, 2008.
MLA-čujuhus (9. p.)Nitschke, Aleta A., juo Willam Frye. Managing Housekeeping Operations. 3. American hotel & lodging educational institue, 2008.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.