Urang, Gunnar, Shadows of heaven : religion and fantasy in the writing of C.S. Lewis, Charles Williams, and J.R.R. Tolkien / Gunnar Urang. - London : South CarolinaM Press, (c)1971. - 184 pages ; 22 cm. Subjects--Topical Terms: Fantasy fiction, English--History and criticism. LC Class. No.: PR888 / .S533 1971