TY  - BOOK
AU  - Giesecke,Frederick E.
AU  - Mitchell,Alva
AU  - Spencer,Henry Cecil
TI  - Technical drawing problems
U1  - 604.2 4th ed.
PY  - 1947///
CY  - New York
PB  - Macmillan Co.
KW  - Mechanical drawing
ER  -