Abundance effects in classification 
edited by B. Hauck and P.C. Keenan. 
 - Dordrecht  D. Reidel Publishing  1976 
 - xxviii, 264p. 
<br/><br/><label>ISBN: </label>90-277-0674-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Abundance<br/>Astronomy and Astrophysics Thesaurus<br/>Spectral classification<br/>Spectral types
<br/><br/><label>Universal Decimal Class. No.: </label>082.2:52  / IAU-S72