Technologically Enhanced Natural Radiation Caused by Non-Uranium Mining :  International Conference, Poland, Szczyrk 16-19 October 1996. 

 - (b. m. wyd.) :  (b. wydaw.) ;  1996. 
 - 30 s. :  il. ;  30 cm. 
<br/><br/> Polish Committee of Scientific Research. 
<br/><br/><label>Uniwersalna Klasyfikacja Dziesiętna: </label> 622:061.3