Bibliography of selected items by George Sayer held at the Wade Center library at Wheaton College, IL; not exhaustive.
Mitchell, Christopher W.
"Selected Sayer Holdings at the Wade Center,"
Mythlore: A Journal of J.R.R. Tolkien, C.S. Lewis, Charles Williams, and Mythopoeic Literature: Vol. 26
, Article 3.
Available at: http://dc.swosu.edu/mythlore/vol26/iss3/3