TY - RPRT TI - Interlaboratory programs for rubber : Analyses no. 37 July - Sept. 1978 AU - Horlick, J AU - Cummings, T L AU - Bullman, G W PY - 1979 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 78-1353 DO - 10.6028/NBS.IR.78-1353 ER -