INTERNATIONAL ASTRONOMICAL UNION SYMPOSIUM (10th <br/><br/>
"The Hertzsprung-Russell diagram. Proceedings of the IAU symposium No. 10, Moscow, August 15-16, 1958" 

 -  Reprinted from Annuales d'Astrophysique  1959 
 - Hbk 127 p. 
 - Mezzanine Floor .