TY - RPRT TI - Laboratory studies of the hydraulic performance of one-story and split-level residential plumbing systems with reduced-size vents AU - Wyly, Robert S AU - Sherlin, Grover C AU - Beausoliel, Robert W PY - 1974 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS BSS 49 DO - 10.6028/NBS.BSS.49 ER -