APA (7 वां संस्करण) प्रशस्ति पत्र

Keller, G., & Warrack, B. (2000). Statistics for management and economics (5th ed.). Duxbury/ Thomson Learning.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Keller, Gerald, और Brian Warrack. Statistics for Management and Economics. 5th ed. Pacific Grove, Calif: Duxbury/ Thomson Learning, 2000.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Keller, Gerald, और Brian Warrack. Statistics for Management and Economics. 5th ed. Duxbury/ Thomson Learning, 2000.