Παραπομπή APA

Alderfer, E. B. M. (1957). Economics of American industry (3.).

Παραπομπή Chicago Style

Alderfer, E B; Michl. Economics of American Industry. 3. McGraw-Hill book Co, Inc, NewYork, 1957.

Παραπομπή MLA

Alderfer, E B; Michl. Economics of American Industry. 3. 1957.