EugeneR.Wittkopf, C., Jr. (2004). American foreign policy:pattern and process. 北京大学出版社.
Chicago Style (17th ed.) CitationEugeneR.Wittkopf, CharlesW.Kegley, Jr. American Foreign Policy:pattern and Process. 北京大学出版社, 2004.
MLA引文EugeneR.Wittkopf, CharlesW.Kegley, Jr. American Foreign Policy:pattern and Process. 北京大学出版社, 2004.
警告:這些引文格式不一定是100%准確.