Singh, H. (1969). Guru Nanak and origins of the Sikh faith. Asia Pub. House.
Lua i Stíl Chicago (17ú heag.)Singh, Harbans. Guru Nanak and Origins of the Sikh Faith. Bombay, New York: Asia Pub. House, 1969.
Lua MLA (8ú heag.)Singh, Harbans. Guru Nanak and Origins of the Sikh Faith. Asia Pub. House, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.