APA (7 वां संस्करण) प्रशस्ति पत्र

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

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

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

एमएलए (9वां संस्करण) प्रशस्ति पत्र

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