Παραπομπή σε μορφή APA (7η εκδ.)

Needles, B. E., & Powers, M. (2005). Principles of financial accounting (9th edition.). Houghton Mifflin Company.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Needles, Belverd E., και Marian Powers. Principles of Financial Accounting. 9th edition. Boston: Houghton Mifflin Company, 2005.

Παραπομπή σε μορφή MLA (8th εκδ.)

Needles, Belverd E., και Marian Powers. Principles of Financial Accounting. 9th edition. Houghton Mifflin Company, 2005.