Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Elizebeth Smith Friedman:

"

The work that Gallup had done earlier for Col. Fabyan at Riverbank operated on the assumption that Bacon wrote Shakespeare and used the bi-literal cipher he invented in the original printed Shakespeare folios, employing "an odd variety of typefaces." The Friedmans, however, "in a classic demonstration of their life's work," buried a hidden Baconian cipher on a page in their publication. It was an italicized phrase which, using the different type faces, expressed their final assessment of the controversy: "I did not write the plays. F. Bacon."[1] Their book is regarded as the definitive work, if not the final word, on the subject. Ironically, it was the Riverbank effort to prove Bacon wrote Shakespeare that introduced the Friedmans to cryptology.[citation needed]