00309nam 2200826 4500001000400000003002300004005000900027008004100036082001100077100001800088260002500106250001900131245002700150826StarLibrary Marc Built20180713201711 ||||| |||||||||||amh  a510.31 arichard brown bmcgraw - hall c2011 aالطبعة 3 adifferential equations