*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.
A Treatise on Surveying and Navigation/en-ca/a-treatise-on-surveying-and-navigation/9B3DD91F-B674-4B90-B696-BD9A25F5124A.html9B3DD91F-B674-4B90-B696-BD9A25F5124A