Schaik, Sam Van. Approaching the great perfection : simultaneous and gradual methods of Dzogchen practice in the Longchen Nyingtig. - Boston : Wisdom Publications, 2004. - xvi, 386 p. 23 cm. Includes bibliographical references (p. 367-386) and index. ISBN: 0861713702 Subjects--Topical Terms: Rdzogs-chen (Rñiṅ-ma-pa) Dewey Class. No.: 294.34 SCH