TY  - BOOK
AU  - Wirshing,Roy H.
AU  - Wirshing,James R.
TI  - Civil engineering drafting
SN  - 0070711275
PY  - 1983///
CY  - New York, N.Y.
PB  - McGraw-Hill
KW  - Engineering drawings
KW  - Mechanical drawing
ER  -