Czechoslovakia
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...by R. J. Kerner (1940) and S. H. Thomson (2d ed. 1953, repr. 1965); M. Rechcigl, Jr., ed., Czechoslovak Contribution to World Culture (1964) and Czechoslovakia Past and Present (2 vol., 1968); Z. A. B. Zeman, Prague Spring (1969); W. Shawcross, Dubcek...