Sprague, Ernest Headly. <br/><br/>
The stability of arches, 
by Ernest H. Sprague, with five folding        plates and fifty-eight diagrams. 
 - London,  Scott, Greenwood & son,  1947. 
 - 329 p.;  20 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arches--Designn and Construction
<br/><br/><label>LC Class. No.: </label>TG327