Ashby, Maurice <br/><br/>
Balance and change in nature  [slide] / 
by Maurice Ashby 
 - [S.l.], :  Focal Point Audio Visual Ltd.,  1977 
 - 80 slides :  col., ;  5 X 5 cm. 
<br/><br/> Woodland as a climax plant community -  Woodland - the complete ecosystem -  Origins of woodland - scrub to climax forest  part 1.  part 2.  part 3. Origins of woodland - colonization to grassland -  part 4. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecological assessment (Biology)