TY  - RPRT
TI  - Procedures for estimating sound power from measurements of sound pressure : an experimental investigation with application to noise from portable air compressors
AU  - Holmer, Curtis I
PY  - 1975
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 75-652
DO  - 10.6028/NBS.IR.75-652
ER  -