TY - BOOK ID - 139010440 TI - Standard reference materials : accuracy of solution x-ray spectrometric analysis of copper-base alloys AU - Alvarez, Robert. AU - Flitsch, Richard. AU - United States. PY - 1965 PB - Gaithersburg, MD : U.S. Dept. of Commerce, National Institute of Standards and Technology, DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:139010440 AB - ER -