Ishar Singh. (1969). The philosophy of Guru Nanak: A comparative study ([1st ed.].). Ranjit Pub. House.
Lua i Stíl Chicago (17ú heag.)Ishar Singh. The Philosophy of Guru Nanak: A Comparative Study. [1st ed.]. New Delhi: Ranjit Pub. House, 1969.
Lua MLA (8ú heag.)Ishar Singh. The Philosophy of Guru Nanak: A Comparative Study. [1st ed.]. Ranjit Pub. House, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.