Puran Prakash 'Saki'. Yug Puroosh : Baba Avatar Singh / Puran Prakash 'Saki'. - 4th ed. - Delhi : Sant Nirankari Mandal, n.d. - 151p. ; 22cm. ISBN: Rs.8 Subjects--Topical Terms: Nirankaris.Sikhism.Sikh sects.Sikh gurus.Avtar Singh--Biography. Dewey Class. No.: 294.661