Book sources

From Halopedia, the Halo wiki

Search for book sources

Online text

Google Books and may be helpful for verifying citations in articles (because they often let you search an online version of the book for specific words or phrases), or you can browse through the book (although for copyright reasons, the entire book is usually not available). At the Open Library (part of the Internet Archive), you can borrow and read entire books online.

Online databases