World.. & OGDEN, S. P. (1989). World politics 90/91. --ed.7. The Dushkin.
Chicago Style (17th ed.) CitationWorld.. and Suzanne P. OGDEN. World Politics 90/91. --ed.7. Guilford: The Dushkin, 1989.
MLA引文World.. and Suzanne P. OGDEN. World Politics 90/91. --ed.7. The Dushkin, 1989.
警告:這些引文格式不一定是100%准確.