Gaya APA

Bethlen, S., Volgyes, I. (1985). Europe and The Superpowers. Political, Economic, and Military Policies in The 1980s (-). London: Westview Press.

Gaya MLA

Bethlen, Steven., Volgyes, Ivan. "Europe and The Superpowers. Political, Economic, and Military Policies in The 1980s". - London: Westview Press, 1985. .