Joginder Singh. (1968). Key to universal brotherhood. Sant Nirankari Mandal.
Chicago Style aipamenaJoginder Singh. Key to Universal Brotherhood. Delhi: Sant Nirankari Mandal, 1968.
MLA aipamenaJoginder Singh. Key to Universal Brotherhood. Sant Nirankari Mandal, 1968.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.