Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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