Παραπομπή σε μορφή APA (7η εκδ.)

Engstrom John H. & Hay Leon E. (1999). Essentials of accounting for governmental and not-for-profit organizations (5th ed.). Irwin/McGraw-Hill.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Engstrom John H. και Hay Leon E. Essentials of Accounting for Governmental and Not-for-profit Organizations. 5th ed. Irwin/McGraw-Hill, 1999.

Παραπομπή σε μορφή MLA (8th εκδ.)

Engstrom John H. και Hay Leon E. Essentials of Accounting for Governmental and Not-for-profit Organizations. 5th ed. Irwin/McGraw-Hill, 1999.