Citazione Stile APA (7a Edizione)

Hoover, E. M. (1948). The Location of economic activity. McGraw-Hill Company.

Citazione stile Chigago Style (17a edizione)

Hoover, Edgar M. The Location of Economic Activity. New York: McGraw-Hill Company, 1948.

Citatione MLA (9a ed.)

Hoover, Edgar M. The Location of Economic Activity. McGraw-Hill Company, 1948.