TY  - BOOK
AU  - Earle,James H.
TI  - Drafting technology
SN  - 0201102390 :
AV  - T353 .E28 1986
U1  - 604.2/4�19 
PY  - 1986///
CY  - Reading, Mass.
PB  - Addison-Wesley
KW  - Mechanical drawing
ER  -