Having these dense, information-packed books on a tablet or e-reader allows students to reference numerical charts and formulas on the go.
While not always legal, Archive.org hosts many out-of-print books that copyright holders have abandoned. It is worth checking for here. If the book was published before 1978 without a copyright renewal (in the US), it might be freely downloadable. Proceed with caution and check the copyright status. Anatol Basarab Carti.pdf
If you are struggling to find the file, your search strategy might be too narrow. "Anatol Basarab Carti.pdf" is a Romanian language query. Try these variations on academic search engines (Google Scholar, JSTOR, CEEOL): Having these dense, information-packed books on a tablet