00379nam a2200133 a 450000500170000000800410001702000180005810000200007624500420009626000410013830000230017965000340020285200090023620190520021752.0071001s19uu    xx            00    eng d  a971-8613-91-910aKlopfer, Susan.10aAbort! Retry! fail! /cSusan Klopfer.0 aManila :bGlobal Publishing,cc1992.  axiv, 145 p. : ill.  aOperating systems (computers)  7Gift