TY - RPRT TI - Liquid level instrumentation in volume calibration AU - Schoonover, R M AU - Ku, H H AU - Whetstone, J R AU - Houser, J F PY - 1975 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 75-900 DO - 10.6028/NBS.IR.75-900 ER -