Anonymous. (1973). US. The sheridan book.
Chicago Style aipamenaAnonymous. US. London: The sheridan book, 1973.
MLA aipamenaAnonymous. US. The sheridan book, 1973.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
Anonymous. (1973). US. The sheridan book.
Chicago Style aipamenaAnonymous. US. London: The sheridan book, 1973.
MLA aipamenaAnonymous. US. The sheridan book, 1973.