Template:Makhan, 2000
- Makhan, D. 2000: Hydrochidae (Coleoptera) from North America with description of Hydrochus pajnii sp. nov. and Hydrochus yadavi sp. nov. Pp. 51-53 in: Sobti, R.C.; Yadav, J.S. (eds.) Some aspects on the insight of insect biology. Narendra Publishing House, Delhi.ISBN 818537564X ISBN 9788185375649 PDF