Can't Buy Kindle Ebook
Check out this page: https://www.amazon.ca/Handbook-Modern-Language-Association-America-ebook/dp/B01KOZCHII/
Some option's like kindle e-books only have a one click buy option. Though most people don't shop kindle books from their computer, we should add some kind of feature to check the book format and allow the item to be one-click-bought in this case.