Some modern methods of ventilation : with special reference to public buildings standards of ventilation, design of ducts, selection of fans, washers, and heaters, specifications, test forms, and specimen schedules for designers / by R. Grierson.

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Some modern methods of ventilation : with special reference to public buildings standards of ventilation, design of ducts, selection of fans, washers, and heaters, specifications, test forms, and specimen schedules for designers / by R. Grierson. Public Domain Mark. Source: Wellcome Collection.