Jasbir Singh. Krantikari mahamanav : Guru Nanak Dev / Jasbir Singh. - Lucknow : Bhuvan vani Trust, 2000. - 381p. ; 22cm. ISBN: Rs.250 Subjects--Topical Terms: Couplets.Preaching.Sikh gurus.Sikhism.Nanak Dev, Guru--Philosophy. Dewey Class. No.: 294.663