Perpendicularity and modifier applications  [videorecording] / 
Coastal Skills Training 
 - Virginia Beach,Va.:  Coastal Training Technologies Corp.  1988 
 - 1 videodisc (14 min.):  sd.,col.;  12 cm. 
<br/><br/><label>ISBN: </label>MED0002319(Local) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometrics<br/>Machine Technology