In addition to over 90,000 cross-references, it also contains other features that together make it not only an excellent Scripture study tool, but also an effective tool for outreach.
The manual edition of hte Septuagint by ALfred Rahlofs has been the standard critical editon of the ancient Greek translation of hte Old Testament for many decades. Now is is available in this 2nd resvised edition, edited by Robert Hanhart.