Style de citation APA

Polk, W. R. (1975). The United States and the Arab World. Harvard Univ. Press.

Style de citation Chicago

Polk, William Roe. The United States and the Arab World. Cambridge, Mass. [u.a.]: Harvard Univ. Press, 1975.

Style de citation MLA

Polk, William Roe. The United States and the Arab World. Harvard Univ. Press, 1975.