Dass, H. (1999). Yoga sutras of Patanjali. New Age Books.
Lua i Stíl Chicago (17ú heag.)Dass, H. Yoga Sutras of Patanjali. New Delhi: New Age Books, 1999.
Lua MLA (9ú heag.)Dass, H. Yoga Sutras of Patanjali. New Age Books, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.