Gilbert , Douglas. C. S. Lewis: Images of his world / Douglas Gilbert. - Grand Rapids : WB Eerdmans, c1973. - 192 p. :21cm : ill. Includes bibliographical references and index. ISBN: 0802815456 Subjects--Topical Terms: Lewis, Clive Staples,1898-1963. LC Class. No.: PR6023 / .926 / .Z66