APA (7 वां संस्करण) प्रशस्ति पत्र

Due, J. F., & Friedlaender, A. F. (1981). Government finance: Economics of the public sector (7th ed.). R.D. Irwin.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Due, John Fitzgerald, और Ann Fetter Friedlaender. Government Finance: Economics of the Public Sector. 7th ed. Homewood, Ill: R.D. Irwin, 1981.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Due, John Fitzgerald, और Ann Fetter Friedlaender. Government Finance: Economics of the Public Sector. 7th ed. R.D. Irwin, 1981.