TY - GEN AU - Oppermann, H V C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1984-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.686e1984 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1984 TI - State weights and measures laboratories - Program Description and Directory: ER -