Mandal, A. K. (1988) “Report of Melanism on the Norway Rat, <I>Rattus norvegicus</i> (Berkenhout) [Rodentia: Muridae] in India”, Records of the Zoological Survey of India, 85(2), pp. 267–270. doi: 10.26515/rzsi/v85/i2/1988/161056.