Silley, P. T. <br/><br/>
Topographical maps and photographic interpretation /  
P. T. Silley 
 - London :  G. Philip,  1955. 
 - vii, 59 p. :  ill. ;   25 cm. 
<br/><br/>Bibliography : p. 57. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Maps.
<br/><br/><label>Dewey Class. No.: </label>526.8  / SIT 1955