Klein, W. (1991). Insight guides: USSR - the New Soviet Union. APA Pub.
芝加哥风格引文Klein, Wilhelm. Insight Guides: USSR - the New Soviet Union. Singapore: APA Pub, 1991.
MLA引文Klein, Wilhelm. Insight Guides: USSR - the New Soviet Union. APA Pub, 1991.
警告：这些引文格式不一定是100％准确.