TY - GEN AU - Middleton, Helen K C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1961-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.MP.238 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1961 TI - Hydraulic research in the United States 1961/: ER -