00253nam a2200109Ia 4500008004100000082002400041100001900065245001000084250001200094260002900106300000800135240913s9999||||xx |||||||||||||| ||und||  aGS    853.01  PAT/G  aT Pathmanabhan 0aGowri  a1st Ed.  bDC BooksaKottayamc2002  a119