Παραπομπή σε μορφή APA (7η εκδ.)

Colm, G. (1961). The economy of the American people: Progress problems, prospects ([2nd ed.].). National Planning Association.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Colm, Gerhard. The Economy of the American People: Progress Problems, Prospects. [2nd ed.]. [Washington]: National Planning Association, 1961.

Παραπομπή σε μορφή MLA (9th εκδ.)

Colm, Gerhard. The Economy of the American People: Progress Problems, Prospects. [2nd ed.]. National Planning Association, 1961.