00289nam a2200109Ia 4500008004100000020001500041082001000056100002000066245005600086260002900142300000800171230216s9999    xx            000 0 und d  a9350566966  bSIN-S  aSINGH TRIBBUWAN 0asilkworm reading technology principals & management  aDJ BOOK DELHIbDPHc2022  a243