APA (7th ed.) Zitazioa

Goldslien, K. E. The world of tomorrow. McGraw-Hill.

Chicago Style (17th ed.) Zitazioa

Goldslien, Kenneth E. The World of Tomorrow. New York: McGraw-Hill.

MLA (9th ed.) Zitazioa

Goldslien, Kenneth E. The World of Tomorrow. McGraw-Hill.