*Valid September 30, 2024 - December 25, 2024 at Canadian stores and at indigo.ca, while quantities last, with $50.00 or more pre-tax purchase of eligible product(s), after discounts and plum points redemptions. Minimum purchase amount excludes gift cards, plum+ memberships, Love of Reading products/donations, and shipping costs. Selection may vary between stores and online.
The Square Root of 2: A Dialogue Concerning a Number and a Sequence/en-ca/the-square-root-of-2-a-dialogue-concerning-a-number-and-a-sequence/657FBE0B-2F3A-46A1-996C-D62F34E784E6.html657FBE0B-2F3A-46A1-996C-D62F34E784E6
The Square Root of 2: A Dialogue Concerning a Number and a Sequence