APA Style

Yarshater, E. (1993). The Cambridge History of Iran Part 2 the Seleucid, Parthian and Sasanian Periods . Cambridge: Cambridge Univ. Press.

MLA Style

Yarshater, Ehsan. "The Cambridge History of Iran Part 2 the Seleucid, Parthian and Sasanian Periods". Cambridge: Cambridge Univ. Press, 1993. Text.