Horlick, J.
, Stevenson, J.
, Bullman, G.
and Bullman, G.
(1978),
Interlaboratory programs for rubber ::Analyses no. 35 January - March 1978, , National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NBS.IR.78-1339
(Accessed December 6, 2024)