Threshold competitor : At head of title;Solo version;Solo version Threshold competitor / ; Anderson, Philip H.. -- 2nd ed. -- Upper Saddle River, NJ :Prentice Hall,c1999.
viii, 103 p. :
Includes index.;System requirements for accompanying computer disks: Windows 3.1, Windows 95, or NT.
ISBN 0130202371
658:681.3
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