Dewan Singh. Mysticism of Guru Nanak / Dewan Singh. - Amritsar : Singh Brothers, 1995. - 117p. ; 23cm. Includes index ISBN: 8172051417 : Rs.65 Subjects--Topical Terms: Sikhism--India.Mysticism.Nanak Dev, Guru--Philosophy.Philosophy, Sikh. Dewey Class. No.: 294.663