Cita APA (7a ed.)

Griffith, W. E. (1989). Central and Eastern Europe, the opening curtain? Westview Press.

Cita Chicago Style (17a ed.)

Griffith, William E. Central and Eastern Europe, the Opening Curtain? Boulder [Colorado] [etc.]: Westview Press, 1989.

Cita MLA (9a ed.)

Griffith, William E. Central and Eastern Europe, the Opening Curtain? Westview Press, 1989.