APA استشهاد

Perkin, H. A. (1996). The third revolution: Professional elites in the modern world.

استشهاد بنمط شيكاغو

Perkin, Harold; Author. The Third Revolution: Professional Elites in the Modern World. London, Routledge, 1996.

MLA استشهاد

Perkin, Harold; Author. The Third Revolution: Professional Elites in the Modern World. 1996.