Sayn-Wittgenstein, L. <br/><br/>
Environmental monitory  : the role of remote sensing 

 - Ottawa :  Forest Management Institute,  1976 
 - s.p.  : ilus. ; mapas 
<br/><br/><label>LCCN: </label>55391 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fotografía aérea.<br/>Sensores remotos.