Sen, S. (1977). Working Class of Idia: History of emergence and movement. K.P. Bagchi.
Chicago Style (17th ed.) ZitazioaSen, Sukomal. Working Class of Idia: History of Emergence and Movement. CALCUTTA: K.P. Bagchi, 1977.
MLA (9th ed.) ZitazioaSen, Sukomal. Working Class of Idia: History of Emergence and Movement. K.P. Bagchi, 1977.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.