Concepts in biology / 
Eldon D. Enger ... [et al.]. 
 - 7th ed. 
 - Dubuque, Iowa :  Wm. C. Brown Publishers,  c1994. 
 - xix, 460 p. :  ill. (some col.) ;  29 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0697136442 0697136450 
<br/><br/><label>LCCN: </label>92075380  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology.
<br/><br/><label>LC Class. No.: </label>QH308.2  / .C66 1994 
<br/><br/><label>Dewey Class. No.: </label>574