Comar, Cyril L.  <br/><br/>
Radioisotopes in biology and agriculture :  principles and practice / 
Cyril L. Comar. 
 - New York :  McGraw-hill book company,  c 1955. 
 - xiii, 481 p. :  ill. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/>340  340 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radioisotopes in agriculture.<br/>Radioisotopes in biology.
<br/><br/><label>Dewey Class. No.: </label>541.23 / C73r