Upanishads. Selections. English. The principal Upanisads / Edited with introd., text, translation and notes by S. Radhakrishan. - London : G. Allen & Unwin;, [1969]. - 958 p. 23 cm. - The Muirhead library of philosophy . - 294.5/921 . Bibliography: p. 951-952. Dewey Class. No.: 294.5/921