APA (7 वां संस्करण) प्रशस्ति पत्र

Williams, T. A. (2009). Contemporary Business Statistics (6th ed.). Thomson Higher Education.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Williams, Thomas A. Contemporary Business Statistics. 6th ed. USA: Thomson Higher Education, 2009.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Williams, Thomas A. Contemporary Business Statistics. 6th ed. Thomson Higher Education, 2009.