Full reference OpenMind biblio ref
Calvo, Emilia. 1997. “Ibn Al-Zarqāllu”. In Encyclopaedia of the History of Science, Technology, and Medicine In Non-Western Cultures, ed. Helaine Selin, 415-16. Dordrecht & Boston: Kluwer Academic.
{ Emilia Calvo, Helaine Selin, 1997 #11391 }