Windsor, P., & Roberts, A. (1969). Czechoslovakia, 1968: Reform, repression and resistance. Chatto and Windus for the Institute for Strategic Studies.
Chicago-viite (17. p.)Windsor, Philip, ja Adam Roberts. Czechoslovakia, 1968: Reform, Repression and Resistance. London: Chatto and Windus for the Institute for Strategic Studies, 1969.
MLA-viite (9. p.)Windsor, Philip, ja Adam Roberts. Czechoslovakia, 1968: Reform, Repression and Resistance. Chatto and Windus for the Institute for Strategic Studies, 1969.
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