MK spectral classifications  ninth general catalogue including UBV photometry Epoch 2000 
compiled by William Buscombe                                 
 - Evanston  North-Western University  1991 
 - 190p. 
<br/><br/><label>ISBN: </label>0-939160-07-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics Thesaurus<br/>Spectral catalogs<br/>Spectral classification
<br/><br/><label>Universal Decimal Class. No.: </label>083.8:524.312  / BUS-9