Usher, Michael B., 1941-  Usher, Michael B., 1941- <br/><br/>
Biological management and conservation;  ecological theory, application and planning 
[by] M. B. Usher. 
 - London,  Chapman and Hall  [1973] 
<br/><br/> "Distributed in the U.S.A. by Halstead Press, a division of John Wiley & Sons, Inc., New York." 
<br/><br/>Bibliography: p. 372-385. 
<br/><br/><label>ISBN: </label>0412113309  L.6.40 
<br/><br/><label>LCCN: </label>73155556 //r85 
<br/><br/><label>Nat. Bib. No.: </label>B*** 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.<br/>Nature conservation.<br/>Ecology -- Technique.--Ecology -- Technique.<br/>Conservation of natural resources.
<br/><br/><label>LC Class. No.: </label>QH541  / .U83 
<br/><br/><label>Dewey Class. No.: </label>301.31