Παραπομπή APA

Allen, V. (1957). Trade union leadership. Longmans, green and company.

Παραπομπή Chicago Style

Allen, V.L. Trade Union Leadership. London: Longmans, green and company, 1957.

Παραπομπή MLA

Allen, V.L. Trade Union Leadership. Longmans, green and company, 1957.