Add this copy of The Heart of Mathematics, an Invitation to Effective to cart. $49.16, good condition, Sold by BooksRun rated 4.0 out of 5 stars, ships from Philadelphia, PA, UNITED STATES, published by Key College Publishing.
Add this copy of The Heart of Mathematics, an Invitation to Effective to cart. $666.67, fair condition, Sold by Goodwill Industries of Tulsa rated 4.0 out of 5 stars, ships from Tulsa, OK, UNITED STATES, published 2005 by Key College Publishing.
