TY  - BOOK
AU  - Van der Merwe,Errol
AU  - Potter,Charles
TI  - Introduction to engineering graphics: a drawing workbook 
SN  - 9781868143351
AV  - T353 VAN 
PY  - 2000///
PB  - Witwatersrand University Press
KW  - Engineering drawings
KW  - Mechanical engineering
ER  -