Levels of radioactivity in Wales from the accident at Chernobyl, USSR, on 26 April 1986 :  a compilation of the results of environmental measurements in Wales / 
Welsh Office. 
 - Cardiff :  Welsh Office,  1986. 
 - 36p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chernobyl Nuclear Accident, Chornobyl', Ukraine, 1986.<br/>Radioactive pollution--Wales.