TY  - BOOK
AU  - Graham, Frank D.
AU  - Anderson, Edwin P.
TI  - Audels sheets metal workers handy book for pattern layout men
U1  - 620 
PY  - 1952///
CY  - New York
PB  - Theo Audel Company Publshers
KW  - Engineering
KW  - Engineering -- General
N1  - Industrial trades, Sheet Metalwork reference book
ER  -