Chhatwal G.R. (ed.) Encyclopaedia of World Great Scientists / G. R. Chhatwal, Raj Kumar, S.K. Arora, S.C. Anand & K. Narang. (ed.) - New Delhi : Anmol Publication , 1992. - 376p. ; 22cm , Set 4500Rs. - Volume-6 . Preface ISBN: 817041-650-7 Subjects--Topical Terms: Encyclopedia of Scientist. Dewey Class. No.: 925.03