TY - RPRT TI - NIST Standard Reference Materials catalog February 2003 AU - Thomas, Joylene W L AU - Branden, Yvonne A AU - Howard, Robbin D PY - 2003 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST SP 260e2003 DO - 10.6028/NIST.SP.260e2003 ER -