Παραπομπή APA

Beal, E. F., & Wickersham, E. D. (1967). The practice of collective bargaining. Richard D Irvin.

Παραπομπή Chicago Style

Beal, Edwin Fletcher, και Edward D. Wickersham. The Practice of Collective Bargaining. London: Richard D Irvin, 1967.

Παραπομπή MLA

Beal, Edwin Fletcher, και Edward D. Wickersham. The Practice of Collective Bargaining. Richard D Irvin, 1967.