TY  - BOOK
AU  - Vohra, K.G.,ed.
TI  - Natural radiation environment
SN  - 0 85226 889 0
U1  - 628.015392 
PY  - 1982///
CY  - New Delhi
PB  - Wiley
KW  - Earth sciences
KW  - Radiation-Environmental aspects
KW  - Radioactivity-Environmental aspects
N1  - Includes index
ER  -