Loden, K. <br/><br/>
Sectral Classification and Multicolour Photometry 

 - London:  Academic Press  1966 
 - 383p. ; 24 cm. 
<br/><br/> Proceedings of the 24th. Symposium of the International Astronomical Union held in Satsjöbaden, Sweeden, 17-21 August, 1964 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomía