The supreme source :
the Kunjed Gyalpo, the fundamental tantra of Dzogchen Semde /
Chögyal Namkhai Norbu, Adriano Clemente ; translated from Italian into English by Andrew Lukianowicz.

APA Citation

Namkhai Norbu, 1., Lukianowicz, A., Clemente, A. (1999). The supreme source: the Kunjed Gyalpo, the fundamental tantra of Dzogchen Semde. Ithaca, NY: Snow Lion Publications.

MLA Citation

Namkhai Norbu, 1938-, Andrew Lukianowicz, and Adriano Clemente. The Supreme Source: the Kunjed Gyalpo, the Fundamental Tantra of Dzogchen Semde. Ithaca, NY: Snow Lion Publications, 1999.

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