Perkin, H. A. (1996). The third revolution: Professional elites in the modern world.
Chicago-stil citatPerkin, Harold; Author. The Third Revolution: Professional Elites in the Modern World. London, Routledge, 1996.
MLA-referensPerkin, Harold; Author. The Third Revolution: Professional Elites in the Modern World. 1996.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.