TY  - BOOK
AU  - Brotherton,M.
TI  - Masers and lasers: : how they work, what they do
AV  - SOC TK7872.M45B7 
PY  - 1964///
CY  - New York
PB  - McGraw-Hill Book Company
KW  - Masers
KW  - Lasers
N1  - Includes index
ER  -