The AAVSO variable star atlas / 
Prepared by Charles E. Scovil. 
 - Cambridge, Mass. :  Sky Publ. Corp.,  1980. 
 - 1 case (178 charts) :  ill. ;  37 cm. 
<br/><br/><label>ISBN: </label>093334628X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Stars--Atlases