APA aipamena

Hufbauer, G. C. (1990). Europe 1992: An American perspective. Washington, D.C: Brookings Institution.

Chicago Style aipamena

Hufbauer, Gary Clyde. Europe 1992: An American Perspective. Washington, D.C: Brookings Institution, 1990.

MLA aipamena

Hufbauer, Gary Clyde. Europe 1992: An American Perspective. Washington, D.C: Brookings Institution, 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.