Ecology of human survival  some strategies for survival  [videorecording] : 

 - Chepstow :  Audio Visual Productions, 
 - 1 videocassette (VHS) (14 min.) :  sd., col.,  ;  1/2 in. 
<br/><br/>Speakers: Charles Brady 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology