*Valid January 13, 2025 - March 2, 2025 at Canadian stores and at indigo.ca with $30.00 or more purchase of eligible in-stock product(s) in a single transaction before taxes, and after discounts. Not valid on previous purchases or in conjunction with other offers.
Invariants of Homology 3-Spheres/en-ca/invariants-of-homology-3-spheres/FE78CD9B-AEA2-48B5-875A-3071EFBC1A5B.htmlFE78CD9B-AEA2-48B5-875A-3071EFBC1A5B