TY  - BOOK
AU  - Sheet Metal and Air Conditioning Constractor's National Association (U.S.)
TI  - Architectural sheet metal manual 
AV  - TH 1651 A66 1987 
PY  - 1987///
CY  - Vienna, Virginia 
PB  - : SMACNA
KW  - Architectural metal-work
KW  - - Handbooks, manuals, etc.
ER  -