1. [Gutenberg Project](https://www.gutenberg.org/ebooks/52317): The Gutenberg Project is a non-profit organization dedicated to making books available to the public for free. You can find the full text of "Farewell to Manzanar" on their website.
2. [Internet Archive](https://archive.org/details/farewelltomanzan00jeat/page/n7/mode/2up): The Internet Archive is another non-profit organization that provides free access to digital books, movies, and other cultural artifacts. You can find the full text of "Farewell to Manzanar" on their website as well.
3. [HathiTrust Digital Library](https://babel.hathitrust.org/cgi/pt?id=uc2.ark:/13960/t10q10q0m): The HathiTrust Digital Library is a partnership of academic and research libraries with a goal of making their collections available to the public. You can find the full text of "Farewell to Manzanar" on their website as well.
Please note that some of these websites may require you to create an account in order to access the full text of the book.