TY - RPRT TI - Dimensional changes of floor coverings with changes in relative humidity and temperature AU - Sigler, Percy A AU - Martens, Robert I AU - Koerner, Elmer A PY - 1942 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS BMS 85 DO - 10.6028/NBS.BMS.85 ER -