APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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