Bhagat, R. C. “On Aphids (Homoptera : Aphididae) and Their Parasitoids (Aphidiidae : Hymenoptera) Infesting Forest Trees in Kashmir Valley, India”. Indian Forester, vol. 111, no. 6, June 1985, pp. 467-74, doi:10.36808/if/1985/v111i6/10237.