If your Bible discusses the Freer ending of the Gospel of Mark only in a footnote, here’s a link to a fuller rendition (see footnote 2): http://www.usccb.org/nab/bible/mark/mark16.htm#v9 Makes me want to visit the Freer Gallery on my next visit to D.C.!
While you’re there, do a bit of exploring on the U.S. Conference of Catholic Bishops website. There’s a Bible link which takes you to a digitalized New American Bible index: http://www.usccb.org/nab/bible/index.shtml And a side link to audio versions (podcasts) of the daily reading — a great aid for those of us who are lectors.
Study hint: You can use this website to copy and paste verses of Scripture for our lessons. There is a search function — http://catholinks.com/BibleSearchNAB.htm — but I find it difficult to use. Another link to NAB is on the Vatican website, but its concordance and other study aids are even more technical. http://www.vatican.va/archive/ENG0839/_INDEX.HTM
As a beginning bible scholar last year, I found a non-Catholic site very helpful. http://www.biblegateway.com/ makes it easy to look up keywords, topics, and passages.