How to use Ohio coal in school heating plants ...
By: by H.M. Faust ...
Series: The Engineering Experiment Station. Circular; no. 23
Publisher: The Ohio State University
Published: 1931
Place of publication: Columbus
Language: eng
Number of pages: 18
Subjects: Coal -- Ohio.
Notes: At head of title: Ohio State University studies. Engineering series. May, 1931.
"Issued in cooperation with the Ohio Department of education, the Ohio Department of industrial relations and the Ohio coal investigation committee."