Z Library is the perfect solution.
It is the same book but it is online version.
Z-library also has another version available on the Tor network where you will mostly see eBooks taken down from the sites.
You can download from z-lib and likely get no issue or fine except that you should acknowledge that you are downloading from illegal means.
You may have probably bookmarked a few of these already.
Z Library is a project for sharing files for research journals, academic-related text, and general knowledge books.