APA استشهاد

Samuels, H. (1959). Trade unions law (6th ed.). Stevens and sons.

استشهاد بنمط شيكاغو

Samuels, Harry. Trade Unions Law. 6th ed. London: Stevens and sons, 1959.

MLA استشهاد

Samuels, Harry. Trade Unions Law. 6th ed. Stevens and sons, 1959.