International commission on Radiological protection (ICRP) <br/><br/>
Permissible does for internal radiation(1959)  Recommendation of the international commission on Radiological protection. 

 - London  Pergamon Press  1959 
 - xxxii, 233p. 24cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radiation - dosage Radiation - measurement.
<br/><br/><label>Dewey Class. No.: </label>612.01448  / I5I