Yan, Haowen <br/><br/>
Surveying :  principles and methods / 
Haowen Yan, Weifang Yang 
 - Beijing, China :  Science Press,  2012 
 - v, 318 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>9781842657201 1842657208 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Surveying--Textbooks