00319nam 2210948 450000100060000000300230000600500090002900800410003808200100007910000270008926000340011624500490015010948StarLibrary Marc Built20180503201711 ||||| |||||||||||amh  a519.5 aحسن محمد حسن bمصر: المعرفه c1998 aمبادى الاحصاء الاجتماعي