Mordeson, John N. Fuzzy mathematics ; an introduction for Engineers and Scientists / - 2nd - New York: Physica-Verlag, 2001 - xiii, 310p. Bibl. Index. - Studies in Fuzziness and Soft Computing ; v. 20 . "Purchased under NBHM grant for the year 2001-2002" ISBN: 3790814202 Dewey Class. No.: 511.3 / M834.TM