Billings, W. D. (William Dwight), 1910-  Billings, W. D. (William Dwight), 1910- <br/><br/>
Plants, man, and the ecosystem / 
[by] W.D. Billings. 
 - 2nd ed. 
 - Belmont, CA :  Wadsworth Pub. Co.,  [1970] 
 - Fundamentals of botany series .
<br/><br/> First and 3d ed. published under title: Plants and the ecosystem. 
<br/><br/>Bibliography: p. 149-151. 
<br/><br/><label>LCCN: </label>70093538 //r86 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant ecology.
<br/><br/><label>LC Class. No.: </label>QK901  / .B5 1970 
<br/><br/><label>Dewey Class. No.: </label>581.5