Παραπομπή σε μορφή APA (7η εκδ.)

RUGGLES, R. (1956). National Income Accounts And Income Analysis. Richard Ruggles And Nancy D. Ruggles. McGraw-Hill.

Παραπομπή σε μορφή Chicago (17η εκδ.)

RUGGLES, Richard. National Income Accounts And Income Analysis. Richard Ruggles And Nancy D. Ruggles. McGraw-Hill, 1956.

Παραπομπή σε μορφή MLA (8th εκδ.)

RUGGLES, Richard. National Income Accounts And Income Analysis. Richard Ruggles And Nancy D. Ruggles. McGraw-Hill, 1956.