India. Dept. of Coal. Performance budget of Department of Coal, Ministry of Energy. Printed by the Manager, Govt. of India Press.
Chicago-referens (17:e uppl.)India. Dept. of Coal. Performance Budget of Department of Coal, Ministry of Energy. Faridabad: Printed by the Manager, Govt. of India Press.
MLA-referens (8:e uppl.)India. Dept. of Coal. Performance Budget of Department of Coal, Ministry of Energy. Printed by the Manager, Govt. of India Press.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.