Hasegawa, T., & Pravda, A. (1990). Perestroika, Soviet domestic and foreign policies. Royal Institute of International Affairs ; Sage Publications.

Hasegawa, Tsuyoshi, and Alex Pravda. Perestroika, Soviet Domestic and Foreign Policies. London : London ; Newbury Park: Royal Institute of International Affairs ; Sage Publications, 1990.

Hasegawa, Tsuyoshi, and Alex Pravda. Perestroika, Soviet Domestic and Foreign Policies. Royal Institute of International Affairs ; Sage Publications, 1990.