APA

Bischof G., Karner S. & Ruggenthaler P. (2010). The Prague Spring and the Warsaw Pact invasion of Czechoslovakia in 1968. Lanham, Md: Lexington Books.

Chicago

Bischof Günter, Karner Stefan and Ruggenthaler Peter. 2010. The Prague Spring and the Warsaw Pact invasion of Czechoslovakia in 1968. Lanham, Md: Lexington Books.

Harvard

Bischof G., Karner S. and Ruggenthaler P. (2010). The Prague Spring and the Warsaw Pact invasion of Czechoslovakia in 1968. Lanham, Md: Lexington Books.

MLA

Bischof Günter, Karner Stefan and Ruggenthaler Peter. The Prague Spring and the Warsaw Pact invasion of Czechoslovakia in 1968. Lanham, Md: Lexington Books. 2010.