Carroll, Douglas Michael <br/><br/>
Air photo-interpretation for soil mapping / 
D. M. Carroll, R. Evans and V. C. Bendelow 
 - Harpenden :  Soil Survey,  1977 
 - vi, 85 p. :  ill., maps ;  30 cm. 
 - Technical monograph (Soil Survey of England and Wales) ;  no.8. .
<br/><br/>Bibliography : p. 82-83 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aerial photography in soil surveys<br/>Soil mapping<br/>Photographic interpretation