Amal Kumar Harh Knowing a negative fact : anupalabdhi/ by Amal Kumar Harh - New Delhi: New Bharatiya Book Corporation, 2001. - 144p. ISBN: 9788187418290 Subjects--Topical Terms: Epistemology IndiaEpistemologyPhilosophy Dewey Class. No.: 121.095 4 / AMA/K