ALLEN, JOHN R.
Heating and ventilation, by John R. Allen and James Herbert Walker. With a chapter on Hot water heating systems by F. E. Giesecke. 3d ed.
ALLEN, JOHN R. Heating and ventilation, by John R. Allen and James Herbert Walker. With a chapter on Hot water heating systems by F. E. Giesecke. 3d ed. © 12Mar31; A34946. Gertrude M. Walker (W); 6Aug58; R219158.
Gertrude M. Walker|W