Black, John David,  1908- <br/><br/>
The management and conservation of biological resources / 
by John D. Black 
 - Philadelphia :  F. A. Davis Co.  1968. 
 - x, 339 p. :  ill., maps. ;  24 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>68-027042 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conservation of natural resources<br/>Wildlife conservation