Perkin, H. (1996). The third revolution: Professional elites in the modern world. Routledge.
Chicago-Zitierstil (17. Ausg.)Perkin, Harold. The Third Revolution: Professional Elites in the Modern World. London [u.a.]: Routledge, 1996.
MLA-Zitierstil (8. Ausg.)Perkin, Harold. The Third Revolution: Professional Elites in the Modern World. Routledge, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.