Cita APA

(1978). America's heritage in the twentieth century. Saint Louis, Missouri: Forum Press.

Chicago Style Citation

America's Heritage in the Twentieth Century. Saint Louis, Missouri: Forum Press, 1978.

Cita MLA

America's Heritage in the Twentieth Century. Saint Louis, Missouri: Forum Press, 1978.

Atenció: Aquestes cites poden no estar 100% correctes.