Ober, S. Keyboarding and document processing for microcomputers - McGraw-Hill N.Y. 1994 - Keyboarding Symbols Skill Development ISBN: 0-02-801737-4 Nat. Bib. No.: 5882 Nat. Bib. Agency Control No.: 681.3OBE Subjects--Topical Terms: Computer Science Universal Decimal Class. No.: 681.3