Παραπομπή APA

Richter, I. (1973). Political purpose in trade unions. Allen & Unwin.

Παραπομπή Chicago Style

Richter, Irvig. Political Purpose in Trade Unions. London: Allen & Unwin, 1973.

Παραπομπή MLA

Richter, Irvig. Political Purpose in Trade Unions. Allen & Unwin, 1973.