TY  - BOOK
AU  - Shih, Randy H.
TI  - Tools for design using AutoCAD 2021 and autodesk inventor 2021
SN  - 9781630573539
U1  - 620.00420285536 
PY  - 2020///
CY  - Mission, UK
PB  - SDC Publications
KW  - AutoCAD
KW  - Engineering graphics
ER  -