Roberts, M. B. V. <br/><br/>
Biology :  a functional approach / 
M.B.V. Roberts. 
 - 3rd ed. 
 - Walton-on-Thames :  Nelson,  1982. 
 - xv, 655 p. :  ill., maps, ports ;  28 cm. 
<br/><br/><label>ISBN: </label>0174480156 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology.