Textbooks generally do not have footnotes, and Wikibooks discourages their use for that reason. We still want to have the ability to provide precise sourcing in textbooks however. We would like to have the ability to use <ref>...</ref> throughout a book, and have a single <references/> which would then list all the references for the whole book. Since there is nothing in the database schema to discern what pages form a book, this will likely necessitate some hack like
Book/Table of Contents
or something similar where all the pages of the book are specified manually.