1. Ada: Problem Solving and Program Design
by Michael B. Feldman 
Price: USD 36.00
Dealer: Alibris, GREEN STREET BOOKS via Alibris
Description: Addison Wesley Publishing Company 1992 2nd Revised ed. Trade paperback Fair 

2. Ada: Problem Solving and Program Design
by Michael B. Feldman; Elliot B. Koffman 
Price: USD 23.01
Dealer: Abebooks, Green Street Books
Description: ISBN10: 0201522799, ISBN13: 9780201522792, [publisher: Addison-Wesley] Softcover . [San Jose, CA, U.S.A.] [Publication Year: 1992]