Report of proceedings, London, 18th-29th August, 1947) 

 - London :    H. M. Stationery Off.,    1951 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Surveying.<br/> Surveys.
<br/><br/><label>Dewey Class. No.: </label>91:526.2 CON