TY - RPRT TI - Standard Reference Materials : Summary of the environmental research, analysis, and control standards issued by the National Bureau of Standards/ AU - Rasberry, S D AU - Mavrodineanu, R PY - 1986 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NBS SP 260-105 DO - 10.6028/NBS.SP.260-105 ER -