Hamm Russell L <br/><br/>
Ecological approach to conservation Ed by Laurenc 
Hamm Russell L; Nason Larry 
 - Minneapolis  Burgess Publishing           1964 
 - v,366p. Glossary p. 353-61  cm. 
 - Burgess Education Series .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology
<br/><br/><label>Dewey Class. No.: </label>G:527, K4