Παραπομπή APA

Sturmthal, A. (1953). Unity and diversity in European labour. the free press.

Παραπομπή Chicago Style

Sturmthal, Adolf. Unity and Diversity in European Labour. Illinois: the free press, 1953.

Παραπομπή MLA

Sturmthal, Adolf. Unity and Diversity in European Labour. the free press, 1953.