Nāgārjuna, active 2nd century. Suhr̥llekha. English

Nāgārjuna's letter to King Gautamīputra : with explanatory notes based on Tibetan commentaries / translated into English from the Tibetan by Lozang Jamspal, Ngawang Samten Chophel, and Peter Della Santina ; and a preface by Sakya Trizin.