Nelson, David. The penguin dictionary of mathematics / edited by David Nelson. - 3rd ed / . - England : Penguin Books , 1989. - viii, 463p. 8 : ill.,table.,fig. ; 18cm . Includes appendix ISBN: RS250.00 (pbk) Subjects--Index Terms: DICTIONARY-MATHEMATICS Dewey Class. No.: 510.3 / NEL/P