00470nam a2200145Ia 4500001000500000005001700005008004100022020001500063082001600078100002000094245008100114260004400195300003300239650005200272165920261006003544.0120911s9999    xx            000 0 und d  a0201622149  a004.616 ABO  aAboba, Bernard.  aThe online user's encyclopedia : bulletin boards and beyond / Bernard Aboba.  aReading, Mass. : Addison-Wesley, c1993.  axxiv, 806 p. : ill. ; 28 cm.  aComputer bulletin boards -- Handbooks, manuals,