Gehring, Charles L. <br/><br/>
Conversational biology :  human interest / 
Charles L. Gehring, William J. Brett 
 - 2nd ed. 
 - Minneapolis, Minn. :  Burgess,  1975 
 - v, 252 p. :  ill. ;  23 cm. 
<br/><br/>Bibliography: p. 237-243 
<br/><br/><label>ISBN: </label>0808707337 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human biology