SMACNA., Sheet Metal and Air Conditioning Contractors'National Association
The Smacna duct design calculator (metric) / SMACNA, Sheet Metal and Air Conditioning Contractors'National Association
The Smacna duct design calculator (metric) / SMACNA, Sheet Metal and Air Conditioning Contractors'National Association
. - Vienna : SMACNA, cop. 1989
. - IX, 7 p. 22 cm
628.8