Comar, Cyril Lewis. <br/><br/>
Radiosotopes in biology and agriculture  : principles and practice 

 - New York :  McGraw-Hill,  1955 
 - 481 p.  : ilus. 
<br/><br/><label>LCCN: </label>22372 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radioisótopos.<br/>Trazadores radioactivos.
<br/><br/><label>Dewey Class. No.: </label>630.72  / C65R