Pankhurst, Richard J. <br/><br/>
Biological identification  : the principles and practice of identification methods in biology 

 - London :  Arnold,  1978 
 - 104 p. 
<br/><br/><label>LCCN: </label>36829 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botánica--Clasificación.<br/>Entomología sistemática.
<br/><br/><label>Dewey Class. No.: </label>574.012  / P35