West Bengal. Labour Directorate, S. B. (1971). Handbook of Labour Statistics of West Bengal: 1970. The author.
Chicago-Zitierstil (17. Ausg.)West Bengal. Labour Directorate, Statistics Branch. Handbook of Labour Statistics of West Bengal: 1970. The author, 1971.
MLA-Zitierstil (9. Ausg.)West Bengal. Labour Directorate, Statistics Branch. Handbook of Labour Statistics of West Bengal: 1970. The author, 1971.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.