Black John D <br/><br/>
The management and conservation of biological resources 

 - Philadelphia  F A Davis         1968 
 - xi, 339p.  cm. 
<br/><br/><label>Standard No.: </label>38119 
<br/><br/><label>Source: </label> Annuals, Advances 
<br/><br/><label>Dewey Class. No.: </label>G:527, K82