APA-viite (7. p.)

Nitschke, A. A., & Frye, W. (2008). Managing housekeeping operations (3.). American hotel & lodging educational institue.

Chicago-viite (17. p.)

Nitschke, Aleta A., ja Willam Frye. Managing Housekeeping Operations. 3. Michigan: American hotel & lodging educational institue, 2008.

MLA-viite (9. p.)

Nitschke, Aleta A., ja Willam Frye. Managing Housekeeping Operations. 3. American hotel & lodging educational institue, 2008.