TY - RPRT TI - Plastic calking materials AU - Tregoning, J J AU - Milliken, K A AU - Hockman, A AU - Sligh, W H AU - Kessler, DW PY - 1940 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS BMS 33 DO - 10.6028/NBS.BMS.33 ER -