Three-dimensional maps :  an annotated list of references relating to the construction and use of terrain models / 
compiled by Walter W. Ristow 
 - Washington :  Library of Congress,  1951 
 - ix, 40 p. ;  27 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Block diagrams--Bibliography
<br/><br/><label>Dewey Class. No.: </label>025.5