@misc{1177046, author = {Peter S Unger}, title = {NVLAP assessment and evaluation manual:}, year = {1985}, month = {1985-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.IR.85-3137}, language = {en}, }