Παραπομπή APA

Singh, K. K. (1966). Worker and the union. Central board for workers education.

Παραπομπή Chicago Style

Singh, Kumar K.K. Worker and the Union. Calcutta: Central board for workers education, 1966.

Παραπομπή MLA

Singh, Kumar K.K. Worker and the Union. Central board for workers education, 1966.