Simpson, George Gaylord <br/><br/>
Principles of animal taxonomy 

 -  Oxford & IBH Publishing Co. Pvt. Ltd., New Delhi  1969 
 - 247 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animal taxonomy; Zoology
<br/><br/><label>Dewey Class. No.: </label>590.12  SIM-P