Nāgārjuna's letter :
Nāgārjuna's 'Letter to a friend', with a commentary by the Venerable Rendawa, Zhön-nu Lo-drö /
translated by Geshe Lobsang Tharchin and Artemus B. Engle.

APA Citation

Nāgārjuna, a. 2nd century., Red-mdaʼ-ba Gzhon-nu-blo-gros, 1. (1979). Nāgārjuna's letter: Nāgārjuna's 'Letter to a friend', with a commentary by the Venerable Rendawa, Zhön-nu Lo-drö. Dharamsala: Library of Tibetan Works & Archives.

MLA Citation

Nāgārjuna, active 2nd century, and 1349-1412 Red-mdaʼ-ba Gzhon-nu-blo-gros. Nāgārjuna's Letter: Nāgārjuna's 'Letter to a Friend', With a Commentary by the Venerable Rendawa, Zhön-nu Lo-drö. Dharamsala: Library of Tibetan Works & Archives, 1979.

Warning: These citations may not always be complete (especially for serials).