TY - BOOK ID - 136822684 TI - Weights and measures thirteenth annual conference PY - 1921 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:136822684 AB - ER -