TY  - RPRT
TI  - Operating characteristics of a prototype multi-layer cloth air filter for Army aircraft 
AU  - Coblentz, C W
AU  - Achenbach, P R
PY  - 1958
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS RPT 5715
DO  - 10.6028/NBS.RPT.5715
ER  -