TY  - BOOK
AU  - Gray, Malcolm
TI  - Maser sources in astrophysics
SN  - 9780521879804
U1  - 523.01875 
PY  - 2012///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Astronomical masers
KW  - Radio astronomy
KW  - Microwave measurement
ER  -