Mead argues that this ancient Gnostic fragment suggests that it is a Christian Mystery-Ritual , perhaps the oldest ritual preserved to us.
Author: G R S Mead (translator)
Publisher: Quest Books/ Theosophical Publishing House USA
Edition: 1973, reprint of 1907 edition
Book: 75pp Paperback
ISBN: 0 – 8356 – 0432 – 2