Goosen, Doeko. <br/><br/>
Aerial photo interpretation in soil survey / 
by Doeko Goosen. 
 - Rome :  Food and Agriculture Organization of the United Nations,  1967. 
 - vi, 55 pages :  illustrations ;  28 cm. 
<br/><br/> Bibliography: p. 53-55. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil survey.