Harnam Singh. Guru Nanak : the man and his mission / Harnam Singh 'Shan'. - Chandigarh : Punjabi University, 1975. - 40p. ; 22cm. Subjects--Topical Terms: Couplets.Preaching.Sikhism--Missions.Nanak Dev, Guru--Philosophy. Dewey Class. No.: 294.663