Seabrook, W. (1941). Witchcraft: Its power in the world to-day. London: George G. Harrap & Co.
Chicago-viite (17. p.)Seabrook, William. Witchcraft: Its Power in the World To-day. London: George G. Harrap & Co, 1941.
MLA-viite (8. p.)Seabrook, William. Witchcraft: Its Power in the World To-day. London: George G. Harrap & Co, 1941.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.