Knight, Bernard Howard. <br/><br/>
Surveying and levelling 
byJ. S. Terrington. 
 - London :  Cosbsy Lockwood,  1939. 
 - 108 p. :  ill. ;  19 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Surveying.<br/>Leveling.