Colm, G. (1961). The economy of the American people: Progress problems, prospects ([2nd ed.].). National Planning Association.
Citação norma ChicagoColm, Gerhard. The Economy of the American People: Progress Problems, Prospects. [2nd ed.]. [Washington]: National Planning Association, 1961.
Citação norma MLAColm, Gerhard. The Economy of the American People: Progress Problems, Prospects. [2nd ed.]. National Planning Association, 1961.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.