1. Hypercomplex Numbers: An Elementary Introduction to Algebras
by Shenitzer, Abe (Translated by), and Kantor, I L, and Solodovnikov, A S 
Price: USD 80.00
Dealer: Alibris, Marriott Library Booksale via Alibris
Description: New York, NY Springer 1989 1989 ed. Hard cover Very good in very good dust jacket. Sewn binding. Cloth over boards. 169 p. Deposits, Special Pubn; 7. Audience: General/trade. Minor shelf wear. Book may have light bumped corners and edges. Very clean book. 

2. Hypercomplex Numbers: An Elementary Introduction to Algebras
by Kantor, I.L., Solodovnikov, A.S. 
Price: USD 277.80
Dealer: AbebooksUK, dsmbooks
Description: ISBN10: 0387969802, ISBN13: 9780387969800, [publisher: Springer] Hardcover Like New [liverpool, United Kingdom] [Publication Year: 1989]