TY  - RPRT
TI  - Directory of professionaltrade organization laboratory accreditationdesignation programs 
AU  - Hyer, Charles W
AU  - Hyer, Charles W
PY  - 1992
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST SP 831
DO  - 10.6028/NIST.SP.831
ER  -