Manual on lock valves, 
compiled by the Committee on lock valves, Waterways division, American society of civil engineers. 
 - New York, N. Y.,  Headquarters of the Society,  1930. 
 - cover-title, 103 p.  incl. illus., 2 pl.  23 cm. 
 - Am. soc. c. e., Manuals of engineering practice ; .
<br/><br/>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Locks (Hydraulic engineering)<br/>MCE
<br/><br/><label>Dewey Class. No.: </label>696.12  / MAN