ebrary, Inc, Bischof, G., Karner, S., & Ruggenthaler, P. (2010). The Prague Spring and the Warsaw Pact invasion of Czechoslovakia in 1968. Lexington Books.
芝加哥风格引文ebrary, Inc, Günter Bischof, Stefan Karner, 与 Peter Ruggenthaler. The Prague Spring and the Warsaw Pact Invasion of Czechoslovakia in 1968. Lanham, MD: Lexington Books, 2010.
MLA引文ebrary, Inc, et al. The Prague Spring and the Warsaw Pact Invasion of Czechoslovakia in 1968. Lexington Books, 2010.
警告:这些引文格式不一定是100%准确.