References - Literature

• The British Sundial Society Sundial Glossary - John Davis
• Sundials: Their Theory and Construction - Albert E. Waugh
• Sundials: History, Theory, and Practice - Rene R. J. Rohr
• Sundials: How to Know, Use, and Make Them - R. Newton Mayall & Margaret L. Mayall
• Sundials: A Simplified Approach by Means of the Equatorial Dial - Frank W. Cousins