Tikader, B.K. and Gajbe, U.A. 1977. Taxonomic Studies on Some Spiders of the Genera <I>Drassodes westring, Haplodrassus Chamberlin, Geodrassus Chamberlin</i> and <I>Nodocion chamberlin</i> (Family : Gnaphosidae) from India. Records of the Zoological Survey of India. 73, 1-4 (Dec. 1977), 63–76. DOI:https://doi.org/10.26515/rzsi/v73/i1-4/1977/161904.