TY  - BOOK
AU  - Luzadder,Warren J.
AU  - Duff,John M.
TI  - Introduction to engineering drawing : : the foundations of engineering design and computer-aided drafting / 
SN  - 0134808495   
PY  - 1993///
CY  - Englewood Cliffs, New Jersey
PB  - Prentice Hall Inc., 
KW  - Computer graphics
KW  - Mechanical drawing
N1  - Includes bibliographical reference and index
ER  -