APA (7th ed.) Citation

Polk, W. R. (1969). The United States and the Arab world (Rev. ed.). Harvard University Press.

Chicago Style (17th ed.) Citation

Polk, William R. The United States and the Arab World. Rev. ed. Cambridge: Harvard University Press, 1969.

MLA (9th ed.) Citation

Polk, William R. The United States and the Arab World. Rev. ed. Harvard University Press, 1969.