TY  - BOOK
AU  - Spencer,Henry Cecil
AU  - Dygdon,John T.
TI  - Basic technical drawing
SN  - 0-02-232150-0
U1  - Prof. 604.2 S745 1980 
PY  - 1980///
CY  - New York, London
PB  - Macmillan, Collier Macmillan
KW  - Mechanical drawing
N1  - Includes index
ER  -