Foster, R. (1974). A guide to Middle-Earth. Ballantine Books.
Chicago Style (17th ed.) CitationFoster, Robert. A Guide to Middle-Earth. New York: Ballantine Books, 1974.
MLA (8th ed.) CitationFoster, Robert. A Guide to Middle-Earth. Ballantine Books, 1974.
Warning: These citations may not always be 100% accurate.