Παραπομπή APA

Hirst, P. Q. (1976). Social Evolution and Sociological Categories. Allen & Unwin.

Παραπομπή Chicago Style

Hirst, Paul Q. Social Evolution and Sociological Categories. London: Allen & Unwin, 1976.

Παραπομπή MLA

Hirst, Paul Q. Social Evolution and Sociological Categories. Allen & Unwin, 1976.