TY  - BOOK
AU  - Ronan,Colin A.
TI  - Invisible astronomy
U1  - 520 
PY  - 1969///
CY  - London
PB  - Eype & Spottiswoode
KW  - Radio astronomy
KW  - Nuclear astrophysics
KW  - Astronomy
N1  - Includes index; Bibliography: p. 165
ER  -