Brandwein, Paul. F; Cooper, Elizabeth K; Blackwood, Paul E; Hone, Elizabeth <br/><br/>
Concepts in Science. 2nd ed 

 - New York  Harcourt,Brace & world  c1970 
 - 186 
<br/><br/>
<br/><br/><br/>E 
<br/><br/><label>Dewey Class. No.: </label>501/Bra