Full reference OpenMind biblio ref
King, David, David King, and George Saliba. 1987. “Some Early Islamic Tables for Determining Lunar Crescent Visibility”. In From Deferent to Equant: A Volume of Studies in the History of Science in the Ancient and Medieval Near East in Honor of E. S. Kennedy, 500:185-225. New York: New York Academy of Sciences.
{ David King, David King, George Saliba, 1987 #1291 }