Pranesachar, C.R.. Problem primer for the Olympiad / C. R. Pranesachar , B.J. Venkatachala , C.S. Yogananda. - Bangalore : Prism Books , 2001. - xii,129p. : ill.,figs,tables ; 23cm . Includes bibliographical references ISBN: NULL (Hb) Subjects--Index Terms: NUMBER THEORY Dewey Class. No.: 512 / PRA/P