Laboratory manual in zoology I (General Zoology) 
San Pedro, Priscilla Villacorte. 
 -  Trinitas Publishing, Inc.,  2004 
 - 92 p. 
<br/><br/>
<br/><br/><label>ISBN: </label>9-71420430-5 
<br/><br/><label>Dewey Class. No.: </label>F 590 Sa5e 2004