Schweitzer, George Keene,  1924- <br/><br/>
Radioactive tracer techniques, 

 - New York,  D. Van Nostrand Co.  [1949] 
 - 241 p.  il.  22 cm. 
<br/><br/>Includes "References." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radioactive tracers.<br/>TRAZADORES RADIACTIVOS