Jensen, William A <br/><br/>
Plant life cycles  the alternation of generations  [kit] : 

 - New York :  Educational Images Ltd.,  1980 
 - 59 slides, 1 sound cassette, 1 instructor's guide ;  in container, 29 X 27 X 8 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant ecology