APA (7th ed.) Zitazioa

HOOVER, E. M. (1963). Location of economic activity. McGraw-Hill.

Chicago Style (17th ed.) Zitazioa

HOOVER, Edgar M. Location of Economic Activity. New York: McGraw-Hill, 1963.

MLA (9th ed.) Zitazioa

HOOVER, Edgar M. Location of Economic Activity. McGraw-Hill, 1963.