00293nam a2200133Ia 4500008004100000020001800041082000800059082001000067100002200077245002500099260001300124260001300137260000900150230118s9999||||xx |||||||||||||| ||und||  a81-7130-072-3  a8m3  bBAL/A  ac.vbbalakrishnan 0aaayussinte pusthakam  akottayam  bdc books  c1984