The ventilation hand book
Subtitle: the principles and practice of ventilation as applied to furnace heating; ducts, flues and dampers for gravity heating; fans and fan work for ventilation and hot blast heating; together with the method of ventilating ships
By: by Charles L. Hubbard. A series of questions, answers and descriptions, illustrated by one hundred and fifty engravings.
Edition: 2d ed., rev. and enl.
Publisher: The Sheet metal publication company
Published: 1920
Place of publication: New York
Subjects: Ventilation.