Gino Germani 
Authoritarianism, National Populism and Fascism [PDF ebook] 

This definitive contribution to social science literature describes German’s general theory of authoritarianism in modem society, and applies it to authoritarian movements and regimes likely to merge out of the social mobilization of the middle and lower classes. Germani analyzes the nature, conditions, and determinants of authoritarianism in the context of Latin American political and social developments and compares it to European fascist movements.