MK spectral classifications  thirteenth general catalogue EPOCH 2000 including UBV photometry 
edited by William Buscombe                               
 - Illinois  North-Western University  1998 
 - 219p. 
<br/><br/><label>ISBN: </label>0-939160-11-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Catalogue-MK spectral classification<br/>MK spectral classification catalogue
<br/><br/><label>Universal Decimal Class. No.: </label>083.8:524.312  / BUS-13