APA (7th ed.) Citation

Polk, W. R. (1975). The United States and the Arab world (3rd ed.). Harvard University Press.

Chicago Style (17th ed.) Citation

Polk, William Roe. The United States and the Arab World. 3rd ed. Cambridge, Mass: Harvard University Press, 1975.

MLA (9th ed.) Citation

Polk, William Roe. The United States and the Arab World. 3rd ed. Harvard University Press, 1975.