"To Say Nothing of the Dog" by Connie Willis is a delightful time-travel romp through Victorian sensibilities, butlers, Coventry chatedral, and many humorous and mystery classics. The title plays homage to "Three Men in a Boat (To Say Nothing of the Dog)", which is probably the silliest piece of Victorian literature. There are references to classics and Tennyson (satirically), and much of the writing is reminiscent of P.G. Woodhouse and Dorothy L. Sayers.
Here are references I found in the book. Some books are named directly by title (The Moonstone, Three Men in a Boat, Alice in Wonderland, etc.). Others are quotes I looked up - mostly by Victorian poets like Tennyson, or poems an educated Victorian would have known, like Robert Burns or the Odyssey. If an author was referenced, I included one of their known works. And finally, I have also included books about histrical events that are often mentioned, such as Waterloo, the signing of the Magna Charta, the battle of Britain, etc.