Natural radiation environment 
/ Proceedings of the second special............................19-23 January, 1981 
 - New Delhi:   Wiley Eastern Ltd,   1982 
 - xi, 691p. 
<br/><br/><label>ISBN: </label>0-85226-889-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment
<br/><br/><label>Subjects--Index Terms: </label>Natural radiation 
<br/><br/><label>Universal Decimal Class. No.: </label>551.510.71(082.2)  / M2