Παραπομπή APA

Blondel, J. (1972). Comparing political systems. Weidenfeild and Nicholoson.

Παραπομπή Chicago Style

Blondel, Jean. Comparing Political Systems. London: Weidenfeild and Nicholoson, 1972.

Παραπομπή MLA

Blondel, Jean. Comparing Political Systems. Weidenfeild and Nicholoson, 1972.