APA (7th ed.) Citation

Handlin, O. (1954). The American people in the twentieth century. Harvard U.P..

Chicago Style (17th ed.) Citation

Handlin, Oscar. The American People in the Twentieth Century. Camb.: Harvard U.P., 1954.

MLA (8th ed.) Citation

Handlin, Oscar. The American People in the Twentieth Century. Harvard U.P., 1954.

Warning: These citations may not always be 100% accurate.