APA Style

McCormick, J, M., Wittkopf, E, R. (2003). The Domestic Sources of American Foreign Policy : insights and evidence (4th Ed.). Lanham, MD: Rowman & Littlefield.

MLA Style

McCormick, James, M.., Wittkopf, Eugene, R.. "The Domestic Sources of American Foreign Policy : insights and evidence". 4th Ed. Lanham, MD: Rowman & Littlefield, 2003. หนังสือ (Book).