Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.