Ann T. Keene., "Masters, William Howell", American National Biography Online, October 2008 Update., Access Date: Wed Oct 01 2014 14:37:37
books.google.com
Thomas Maier, Masters of Sex: The Life and Times of William Masters and Virginia Johnson, the Couple Who Taught America How to Love, publ. Basic Books, 2013, ISBN 0465044999, 9780465044993. Length 424 pages. (page)