APA引文
Polk, W. R. (1975). The United States and the Arab World (3rd. ed.). Harvard University press.
Chicago Style (17th ed.) Citation
Polk, William R. The United States and the Arab World. 3rd. ed. London: Harvard University press, 1975.
MLA引文
Polk, William R. The United States and the Arab World. 3rd. ed. Harvard University press, 1975.
警告：這些引文格式不一定是100％准確.