Ram Parkash. (1989). The glass bangle industry of Firozabad: A report on child labour. National Labour Institute.
Chicago-referens (17:e uppl.)Ram Parkash. The Glass Bangle Industry of Firozabad: A Report on Child Labour. [New Delhi]: National Labour Institute, 1989.
MLA-referens (8:e uppl.)Ram Parkash. The Glass Bangle Industry of Firozabad: A Report on Child Labour. National Labour Institute, 1989.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.