Tillman, S.
, Hudson, R.
, Ely, E.
, Fairchild, I.
, McAllister, A.
and Bouillon, A.
(1928),
Monthly news bulletin of Commercial Standards Group, Bureau of Standards October 15, 1928:, , National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NBS.CSM.43
(Accessed August 31, 2024)