Heyl, P.
(1926),
Letter Circular 205::sound proof partitions, , National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NBS.LCIRC.205
(Accessed December 26, 2024)
If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.