APA引文

Korff, S. A. b. (1922). Russia's foreign relations during the last half century. MacMillan.

芝加哥风格引文

Korff, Sergie Aleksandrovich baron. Russia's Foreign Relations During the Last Half Century. New York: MacMillan, 1922.

MLA引文

Korff, Sergie Aleksandrovich baron. Russia's Foreign Relations During the Last Half Century. MacMillan, 1922.