APA

Thoman R. S., Corbin P. B. & McGraw-Hill Companies. (1974). The geography of economic activity. New York [i pozostałe]: McGraw-Hill Book Co.

Chicago

Thoman Richard S, Corbin Peter B and McGraw-Hill Companies. 1974. The geography of economic activity. New York [i pozostałe]: McGraw-Hill Book Co.

Harvard

Thoman R. S., Corbin P. B. and McGraw-Hill Companies. (1974). The geography of economic activity. New York [i pozostałe]: McGraw-Hill Book Co.

MLA

Thoman Richard S, Corbin Peter B and McGraw-Hill Companies. The geography of economic activity. New York [i pozostałe]: McGraw-Hill Book Co. 1974.