Curtis, Helena <br/><br/>
Biology / 
Helena Curtis 
 - 2nd ed. 
 - Kent :  Worth,  1975 
 - xxv,1065 p.:  ill.;  27 cm. 
<br/><br/><label>ISBN: </label>040810712x 
<br/><br/><label>LCCN: </label>74-027183 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology