Waugh, A. E. n. 1., & Waugh, A. E. n. 1. (1973). Sundials: Their theory and construction. New York, New York: Dover.
Citación estilo ChicagoWaugh, Albert Edmund n. 1902, y Albert Edmund n. 1902 Waugh. Sundials: Their Theory and Construction. New York, New York: Dover, 1973.
Cita MLAWaugh, Albert Edmund n. 1902, y Albert Edmund n. 1902 Waugh. Sundials: Their Theory and Construction. New York, New York: Dover, 1973.
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