Murphy, John Stewart <br/><br/>
Chanals :  How they were Built / 
John Stewart Murphy,  
 - London :  Oxford University Press,  1961. 
 - 31 p. :  ill. ;  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydraulic
<br/><br/><label>Dewey Class. No.: </label>627.13  / MUR 1961