Pillai, S.O. creator text New Delhi New age International 2015 7th ed monographic xvi, 880p.: 25cm(pbk) col. ill. by S.O. Pillai Includes bibliographical references and index 530.41 9788122436976 1516EN07 ENG-114928 RBPPL/ven DBAD/PUB 20170613144827.0