Sahgal, Om Sagar,  1928- <br/><br/>
The applications of photogrammetry to highway engineering in the Southeast Asian region  [microform]  / 
by Om Sagar Sahgal 
 - Ann Arbor, Mich. :  University Microfilms International,  1962 
 - 1 microfilm reel :  positive ;  35 mm. 
<br/><br/>Thesis (Ph.D.) - Ohio State University, 1961 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Photography in highway engineering