APA (7th ed.) Citation

Beckman, P. R. (1984). World politics in the twentieth century / Peter R. Beckman. Prentice-Hall.

Chicago Style (17th ed.) Citation

Beckman, Peter R. World Politics in the Twentieth Century / Peter R. Beckman. Englewood Cliffs ; London: Prentice-Hall, 1984.

MLA (9th ed.) Citation

Beckman, Peter R. World Politics in the Twentieth Century / Peter R. Beckman. Prentice-Hall, 1984.

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