The Arabs and the Stars: Texts and Traditions on the Fixed Stars, and their Influence in Medieval Europe (Northampton: Variorum Reprints, 1989).

Lottie Labowsky,

Bessarion’s Library and the Biblioteca Marciana (Rome: Edizioni di Storia e Letteratura, 1979).

Jacob Lassner,

The Topography of Baghdad in the Early Middle Ages: Text and Studies (Detroit: Wayne State University Press, 1970).

Brian Lawn,

Salernitan Questions (Oxford: Oxford University Press, 1963).

A. C. Leighton,

Transport and Communication in Early Medieval Europe, AD 500-1100 (Newton Abbot: David & Charles, 1972).

David C. Lindberg,

Bog aan la aqoon