TY - RPRT TI - Organizations engaged in preparing standards for dental materials and therapeutic agents with a list of standards AU - Paffenbarger, G C AU - Rupp, R W AU - Malmstedt, Margaret PY - 1980 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS SP 571 DO - 10.6028/NBS.SP.571 ER -