"Hindu philosophy." . . "Mysticism Hinduism." . . "Upanishads" . . "Upanishads." . . . "Hinduismo textos." . . "Hinduism Sacred books History." . . "Upanishads (Texts, versions, etc.)" . . "Hinduism Sacred books." . . . . "The principal Upaniṣhads"@en . . . . "Principal Upanishads"@en . . . . . . . . . "[Upanisad, sankr. u. engl.] The principal Upanisads" . . . . . "The Principal Upani sads"@en . . . "Criticism, interpretation, etc" . "Criticism, interpretation, etc"@en . . . . . . "Hindu philosophical classics." . . . "The principal Upaniṣads" . "The principal Upaniṣads"@en . . . . "The principal Upanisads"@en . . . "The principal Upanisads" . "Upanisad" . . . . "Bibliography"@en . "Bibliography" . . . . . . . "Upanishads" . "Upanishads"@en . . . "The principal upanisads ed.with and introd.,text, transl.,and notes by D.Radhakrishnan" . . . . . . . . . . . . "The principal upnisads" . "Upaniṣad" . . . . "Upanis̄adon kī bhumikā" . . . . . "The principal Upanishads" . "The principal Upanishads"@en . . . . . . . . . "The Principal Upaniṣads" . "The Principal Upaniṣads"@en . "Teksten (vorm)" . . "Upanishad" . . . . . . . . . . "The Principal Upanishads" . . . . . . . . . . "Upanishadas" . . . . "The principal Upanisads. Edited with introd., text, translation and notes by S. Radhakrishnan"@en . . "The Principal Upanisads" . . . "Hinduismo." . . "Upanishads(Texta,versions,etc.)." . . "Teksten (vorm)" . . "India" . . "Filosofía hindú." . . "Filosofía hindú" .