The PC-SIG encyclopedia of shareware
By: by PC-SIG, Inc.
Contributors: PC Software Interest Group (Sunnyvale, Calif.)
Edition: 4th ed.
Publisher: Windcrest
Published: 1991
Place of publication: Blue Ridge Summit, PA
Language: eng
Number of pages: 690
Subjects: Shareware (Computer software) -- Catalogs.
Notes: Includes index.