APA (7 वां संस्करण) प्रशस्ति पत्र

Due, J. F., & Friedlaender, A. F. (1973). Government finance: Economics of the public sector (5th ed.). R. D. Irwin.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Due, John Fitzgerald, और Ann Fetter Friedlaender. Government Finance: Economics of the Public Sector. 5th ed. Homewood, Ill: R. D. Irwin, 1973.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Due, John Fitzgerald, और Ann Fetter Friedlaender. Government Finance: Economics of the Public Sector. 5th ed. R. D. Irwin, 1973.