Hugh Nibley. The Message of the Joseph Smith Papyri: An Egyptian Endowment. (Salt Lake City: Deseret Book, 1975.)

• Originally published in 1975, MJSP has recently been reprinted by FARMS. The text itself borders on incomprehensible, due to the technicality of the topic and the constant citing of German, Egyptian, Greek, etc., but the texts reproduced in the appendices offer striking parallels to LDS temple concepts.
• Gospelink (requires subscription) The text will apparently be available (along with some other books) in the FARMS subscribers area.
• Deseret Book