TY - BOOK AU - Wallis, R. Allan TI - Axial flow fans and ducts SN - 0471870862 PY - 1983/// CY - New York PB - John Wiley & Sons KW - AERODYNAMICS KW - AIR EXTRACTORS KW - AXIAL FLOW FANS KW - DUCTS KW - FANS KW - ROTARY AIRMOVERS ER -