TY - GEN AU - Dickens, Brian AU - Brown, Walter E C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1968-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.RPT.9985 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1968 TI - The crystal structure of CaCO sub 3 . 6H sub 2 O at -120 degrees C ::progress report ER -