Garg, A. and Joshi, B. 2016. Keystone Trees in Upper Ganga Ramsar Site Sustaining Rose-Ringed Parakeets (<I>Psittacula krameri</I>). Indian Forester. 142, 10 (Oct. 2016), 1035–1036. DOI:https://doi.org/10.36808/if/2016/v142i10/104163.