TY  - BOOK
AU  - Williams,David R
TI  - What is safe? : the risks of living in a nuclear age
SN  - 0-85404-569-4
U1  - 539.75/W671w 
PY  - 1998///
CY  - [Cambridge, Gran Bretaña] 
PB  - The Royal Society of Chemistry
KW  - RADIACTIVIDAD
N1  - Bibliografía: p. 135-136
ER  -