Horlick, J.
, Cummings, T.
and Bullman, G.
(1979),
Interlaboratory programs for rubber ::Analyses no. 37 July - Sept. 1978, , National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NBS.IR.79-1353
(Accessed August 31, 2024)