Παραπομπή APA

Singh, G., & Bhaskkara Rao,R.B.P. (1967). Guru Nanak. National Book Trust.

Παραπομπή Chicago Style

Singh, Gopal, και Bhaskkara Rao,R.B.P. Guru Nanak. New Delhi: National Book Trust, 1967.

Παραπομπή MLA

Singh, Gopal, και Bhaskkara Rao,R.B.P. Guru Nanak. National Book Trust, 1967.