Usill,G.W. <br/><br/>
Practical surveying 

 - Fifteenth Ed. 
 - London :  The technical press ltd,  1960 
 - 471p.;  24cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural sciences and mathematics
<br/><br/><label>Dewey Class. No.: </label>526.2  / USI