Sale, R. (1973). Modern heroism: Essays on D. H. Lawrence, William Empson, & J. R. R. Tolkien. University of California Press.
Lua i Stíl Chicago (17ú heag.)Sale, Roger. Modern Heroism: Essays on D. H. Lawrence, William Empson, & J. R. R. Tolkien. Berkeley: University of California Press, 1973.
Lua MLA (8ú heag.)Sale, Roger. Modern Heroism: Essays on D. H. Lawrence, William Empson, & J. R. R. Tolkien. University of California Press, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.