TY  - BOOK
ED  - B.F. Sturtevant company 
TI  - Sturlevant: Fans, Heaters and air washers
U1  - 697 21st ed. 
PY  - 1917///
CY  - Boston 
PB  - B.F. Sturtevant
KW  - Fans Dimensions, Capacities, horse power, Monograph
N1  - Book for Information for architects and Engineers
this Barcode number also match in another book title is Chemical engineering nomographs 660.83 DAV/C 
author- Davis, Dale S
ER  -