APA (7 वां संस्करण) प्रशस्ति पत्र

Buttery, R., Hurford, C., & Simpson, R. K. (1993). Audit in the public sector (2nd ed.). ICSA Pub.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Buttery, Roger, Chris Hurford, और Robert K. Simpson. Audit in the Public Sector. 2nd ed. Hertfordshire, [Eng.]: ICSA Pub, 1993.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Buttery, Roger, et al. Audit in the Public Sector. 2nd ed. ICSA Pub, 1993.