England, A. W., & Laurence, D. H. (1941). Man and superman: A comedy and a philosophy. Penguin.
Chicago Style aipamenaEngland, Alan William, and Dan H. Laurence. Man and Superman: A Comedy and a Philosophy. London: Penguin, 1941.
MLA aipamenaEngland, Alan William, and Dan H. Laurence. Man and Superman: A Comedy and a Philosophy. Penguin, 1941.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.