TY  - RPRT
TI  - Supplementary investigation of test procedures for heating and air conditioning ducts 
AU  - Cole, Selden D
AU  - Achenbach, Paul R
PY  - 1963
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS report ; 8013
DO  - 10.6028/NBS.RPT.8013
ER  -