TY  - BOOK
AU  - Walker,John R.
TI  - Exploring metric drafting: basic fundamentals
SN  - 0870062891
PY  - 1980///
CY  - South Holland, Ill.
PB  - Goodheart-Willcox Co.
KW  - Mechanical drawing
KW  - Metric system
N1  - Includes index
ER  -