BIBLIOGRAPHY CONTRIBUTOR Gregg DeYoung First name Gregg Last name DeYoung Bibliography entries by this contributor DeYoung, Gregg. 1997. “Al- Ḥajjāj”. In Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures, ed. Helaine Selin. Dordrecht; Boston: Kluwer Academic. DeYoung, Gregg. 1981. “The Arithmetic Books of Euclid’s Elements in the Arabic Tradition”. Harvard University.
