TY  - BOOK
AU  - Spence,William P.
TI  - Drafting: technology and practice 
SN  - 0026762900
AV  - T353 S636D 1991
PY  - 1991///
CY  - New York, N.Y.
PB  - Glencoe/Macmillan/McGraw-Hill
KW  - MECHANICAL DRAWING
N1  - Includes index
ER  -