TY  - BOOK
AU  - Nagda,Niren Laxmichand
TI  - Radon: prevalence, measurements, health risks and control 
T2  - ASTM manual series
SN  - 0-8031-2057-5
AV  - TD885.5 .R33 R33
PY  - 1994///
CY  - Philadelphia, Pa.
PB  - ASTM
N1  - Incluye bibliografia
ER  -