00296nam a2200121Ia 4500008004100000020001800041082001500059100001800074245003000092250000800122260003600130300000800166190710s9999    xx            000 0 und d  a81-7457-066-7  a371.3078 A  aAggrawal, J C 0aShaikshik takniki (Hindi)  a3rd  aAgrabVinod Pustak Mandirc2006  a424