The solar spectrum  : Proceedings 
/ of the symposium held at the University of Utrecht 26-31 August 1963 ; ed. by C. de Jager 
. - Dordrecht  : D. Reidel, 1965
. - XIV-417 p.  : ill.  ; 25 cm. 
 - Astrophysics and space science library .
<br/><br/><label>Source: </label> Don des Pays - Bas 
<br/><br/><label>Universal Decimal Class. No.: </label>523.77