The Kelpie and the Water Wheel (sources)
- Superstitions of the Highlands & Islands of Scotland, by John Gregorson Campbell, 1900 James MacLehose and Sons, Glasgow, Scotland. pg.215. Online at: http://books.google.com/books?id=lQLaAAAAMAAJ&printsec=frontcover&dq=editions:FT4PgwT7z6YC&hl=en&sa=X&ei=hQ6_U5yTM4n-oQTV7oD4Dg&ved=0CEkQ6AEwCQ#v=onepage&q&f=false