1. Sky Catalogue 20000: Volume 1 SKY CATALOGUE 20000 2ND ED
by Hirshfeld Alan; Sinnott Roger W.; Ochsenbein Frangois 
Price: USD 376.25
Dealer: Biblio, Ergodebooks
Description: Cambridge University Press, Date: 1991-11-29. Hardcover. Used: Good. 1991. Cambridge University Press ISBN 0521417430 9780521417433 [US] 

2. Sky Cat 2000 Stars Magnitude V1 2Ed Hb
by Vv.Aa. 
Price: USD 2963.67
Dealer: Abebooks, Iridium_Books
Description: ISBN10: 0521417430, ISBN13: 9780521417433, [publisher: CAMBRIDGE] [DH, SE, Spain]