South-Western(16thEdition) Business Math - Competitive Events Guide [Paperback] by Robert by Raymon M. Kaczmarski RobertA. Schultheis Paperback, Published 2006 by South-Western, Thomson ISBN-13: 978-0-538-44413-2, ISBN: 0-538-44413-4
Business Math(16thEdition) by RobertA. Schultheis, Raymond M. Kaczmarski Hardcover, 688 Pages, Published 2005 by South-Western Educational Pub International Edition ISBN-13: 978-0-538-44052-3, ISBN: 0-538-44052-X