The Yoga-system of Patañjali, or, The ancient Hindu doctrine of concentration of mind : embracing the mnemonic rules, called Yoga-sūtras, of Patañjali and the comment, called Yoga-bhāshya, attributed to Veda-Vyāsa and the explanation, called Tattva-vāiçāradī, of Vāchaspati-Miçra
translated from the original Sanskrit by James Haughton Woods
(Harvard oriental series, v. 17)
Harvard University Press, 1914