How is a CAD drawing done?

Bibliographic Details
Main Author: Sullinger, Bob (Author)
Corporate Author: Meridian Education Corporation
Format: Video
Language:English
Published: Bloomington, Illinois Meridian Education Corporation 1995
Subjects:
Description
Physical Description:1 videodisc (12 min.) 4 3/4 in. 1 video series user's guide
Format:System requirements: DVD video