APA Edition Citation

Dubofsky, M. (1978). United states in the twentieth century. Prentice Hall.

Chicago Edition Citation

Dubofsky, Melvyn. United States in the Twentieth Century. Prentice Hall, 1978.

MLA Edition Citation

Dubofsky, Melvyn. United States in the Twentieth Century. Prentice Hall, 1978.

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