Style de citation APA

Calleo, D. P. (1978). The German problem reconsidered: Germany and the world order ; 1870 to the present. Cambridge Univ. Press.

Style de citation Chicago

Calleo, David P. The German Problem Reconsidered: Germany and the World Order ; 1870 to the Present. Cambridge: Cambridge Univ. Press, 1978.

Style de citation MLA

Calleo, David P. The German Problem Reconsidered: Germany and the World Order ; 1870 to the Present. Cambridge Univ. Press, 1978.