Williams, G. J. <br/><br/>
Advanced solar collectors for water heating 
/ G. J. Williams, K. Hayward 
. - Luxembourg  : Office for Official Publications of the European Communities, 1988
. - IX-71 p.  : ill.  ; 30 cm. 
 - Energy series .
<br/><br/><label>Source: </label> Don C.E.E. 
<br/><br/><label>Universal Decimal Class. No.: </label>621.1