TY  - BOOK
AU  - Klein Arthur H 
AU  - Editorial consultant Half Helen
ED  - Illustrated by Aloise Frank
TI  - Masers and lasers
SN  - 1004
PY  - 1963///
CY  - Philadelphia 
PB  - J.B Lippincott Company
KW  - Maser - Juvenile literature
KW  - Lasers - Juvenile literature
ER  -