Anonymous. (1973). US. The sheridan book.
Chicago-viite (17. p.)Anonymous. US. London: The sheridan book, 1973.
MLA-viite (8. p.)Anonymous. US. The sheridan book, 1973.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.
Anonymous. (1973). US. The sheridan book.
Chicago-viite (17. p.)Anonymous. US. London: The sheridan book, 1973.
MLA-viite (8. p.)Anonymous. US. The sheridan book, 1973.