Castillon, David A. <br/><br/>
Conservation of natural resources :  a resource management approach / 
David A. Castillon 
 - 2nd ed. 
 - Madison, WI. :  Brown & Benchmark,  1996 
 - 470 p. :  ill. ;  28 cm. 
<br/><br/>includes index. 
<br/><br/><label>ISBN: </label>0697157822 
<br/><br/><label>LCCN: </label>95-078742 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conservation of natural resources<br/>Natural resources--Management<br/>Conservation of natural resources--Management--United States<br/>Natural resources--Management--United States<br/>Conservation of natural resources--North America<br/>Natural resources--Management--North America