Ilg, A. M. (1922). Two roads to paradise. s.n.].
Chicago Style aipamenaIlg, Augustin Maria. Two Roads to Paradise. [S.l.: s.n.], 1922.
MLA aipamenaIlg, Augustin Maria. Two Roads to Paradise. s.n.], 1922.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.