VERMA,RK; KAPOOR, K. (2013). Rakchham Chitkul Wildlife Sanctuary Kinnaur, Himachal Pradesh: An Appraisal to its Floristic Wealth. Himalayan Forest Research Institute Shimla.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVERMA,RK; KAPOOR, KS. Rakchham Chitkul Wildlife Sanctuary Kinnaur, Himachal Pradesh: An Appraisal to Its Floristic Wealth. Panthaghati Shimla, India: Himalayan Forest Research Institute Shimla, 2013.
एमएलए (9वां संस्करण) प्रशस्ति पत्रVERMA,RK; KAPOOR, KS. Rakchham Chitkul Wildlife Sanctuary Kinnaur, Himachal Pradesh: An Appraisal to Its Floristic Wealth. Himalayan Forest Research Institute Shimla, 2013.
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