The non-canonical books referenced in the Bible includes non-Biblical cultures and lost works of known or unknown status. By the "Bible" is meant those books recognized by Christians and Jews as being part of Old Testament (or Tanakh) as well as those recognized by most Christians as being part of the Biblical apocrypha or of the Deuterocanon.
It may also include books of the Anagignoskomena (Deuterocanonical books ยง In Eastern Orthodoxy) that are accepted only by Eastern Orthodox Christians. For the purposes of this article, "referenced" can mean direct quotations, paraphrases, or allusions, which in some cases are known only because they have been identified as such by ancient writers, or the citation of a work or author.