Παραπομπή σε μορφή APA (7η εκδ.)

Ruggles, R., & Ruggles, N. D. (1956). National income accounts and income analysis (2nd ed.). McGraw-Hill.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ruggles, Richard, και Nancy D. Ruggles. National Income Accounts and Income Analysis. 2nd ed. New York: McGraw-Hill, 1956.

Παραπομπή σε μορφή MLA (9th εκδ.)

Ruggles, Richard, και Nancy D. Ruggles. National Income Accounts and Income Analysis. 2nd ed. McGraw-Hill, 1956.