Nhá̂t Hạnh, Thích. The heart of understanding : commentaries on the Prajñaparamita Heart Sutra / Thich Nhat Hanh ; edited by Peter Levitt. - [20th anniversary ed.] - 49 pages ; 21 cm. ISBN: 9781888375923 (pbk.) 9780938077114 LCCN: 2009027146 Subjects--Uniform Titles: Tripiṭaka.--Sūtrapiṭaka.--Prajñāpāramitā.--Hṛdaya--Commentaries. LC Class. No.: BQ1967 / .N48 2009 Dewey Class. No.: 294.3/85