TY - GEN AU - Middleton, Helen K C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1957-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.MP.221 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1957 TI - Hydraulic Research in the United States 1957 (Including Contributions from Canadian Laboratories)/: ER -