Cobol estructurado /

by Grauer, Robert T. 1945-, Grauer, Robert T. 1945-
Published 1983

Structured methods through COBOL /

by Grauer, Robert T. 1945-, Grauer, Robert T. 1945-
Published 1983

Microcomputer applications

by Grauer, Robert T., 1945-
Published 1989

Exploring Microsoft Excel, versión 5.0 /

by Grauer, Robert T. 1945-, Grauer, Robert T. 1945-, Barber, Maryann
Published 1994

Introducción a la informática con Microsoft Office XP y 2000 /

by Grauer, Robert T. 1945-, Grauer, Robert T. 1945-, Barber, Maryann
Published 2004