Wegmann, Edward  1850-, <br/><br/>
The design and construction of dams :  Including masonry, earth, rock-fill, timber, and steel structures also the principal types of movable dams / 
By Edward wegmann 
 - 6 # rev. and enlarged 
 - 529 páginas 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Presas
<br/><br/><label>LC Class. No.: </label>TC540  / W42 1911