TY  - BOOK
AU  - Kramer,G.W.
AU  - Travis,J.C.
AU  - Faison,C.D.
AU  - Rasberry,S.D.
ED  - Estados Unidos. National Institute of Standards and Technology^pUS
ED  - Estados Unidos. National Voluntary Laboratory Accreditation Program
ED  - Estados Unidos. National Voluntary Laboratory Accreditation Program
TI  - Chemical calibration: certifiers of spectrophotometric NTRMs
T2  - Handbook, no.<150-21> no. 150-21
PY  - 2000///
CY  - [s.l.]
PB  - NIST
ER  -