ELITZUR(Moshe) <br/><br/>
Astronomical masers 

 - Dordrecht  Kluwer  1992 
 - Hbk. xiv p. + 351 
 - ASTROPHYSICAL AND SPACE SCIENCE LIBRARY VOL-70 .
<br/><br/><label>ISBN: </label>0-7923-1216-3 
<br/><br/><label>Source: </label>***Free