An introductory guide to GDL
By: John R.H. Penner.
Contributors: Graphisoft Support Centre North East.
Publisher: Graphisoft Support Centre North East
Published: 1992
Place of publication: Mississauga, Ont
Language: eng
Number of pages: 196
Subjects: ArchiCAD (Computer file); Architectural drawing -- Computer programs.
Notes: "A guide that lets you take advantage of ArchiCAD's powerful built-in programming language"--Cover.

Includes index.