TY  - BOOK
AU  - William P.Spence
TI  - Drafting : technology and practice
SN  - 0026762900
AV  - T 353 S63D 1991
PY  - 1991///
CY  - New York
PB  - Glencoe
KW  - MECHANICAL DRAWING
N1  - Includes appendices and index
ER  -