An explanation on the development of the Catholic canon and the differences found within protestant bibles.
- Book (and online): Catechism of the Catholic Church, paragraphs #120-130.
- Online: An extremely helpful chart comparing the books in four different bibles: Jewish, Orthodox, Catholic, and Protestant. http://catholic-resources.org/Bible/Heb-Xn-Bibles.htm
- Online: Article explaining the development of the Old Testament canon. http://en.wikipedia.org/wiki/Development_of_the_Old_Testament_canon