Climatology of the middle atmosphere over the equatorial region of India (Thumba) (1970-1993) 
India Meteorological Department  
 - New Delhi:   India Meteorological Department,   1998 
 - vi, 171p.  
 - Meteorological monograph   20/2000 .
<br/><br/><label>Universal Decimal Class. No.: </label>551.581.2(540)  / N8