Wolferstan, B. (1922). The duties of parents towards their children. Catholic Truth Society.
Chicago-viite (17. p.)Wolferstan, Bertram. The Duties of Parents Towards Their Children. London: Catholic Truth Society, 1922.
MLA-viite (8. p.)Wolferstan, Bertram. The Duties of Parents Towards Their Children. Catholic Truth Society, 1922.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.