Gaya APA

Bernas, T, G. et al (1977). The American Adventure : Into The Twentieth Century 1880 - 1940 . United States: Allyn And Bacon, Inc..

Gaya MLA

Bernas, Thomas, G.. et al. "The American Adventure : Into The Twentieth Century 1880 - 1940". United States: Allyn And Bacon, Inc., 1977. Text.