J.M.F. Van Reeth Caliph al-Ma'mun and the Treasure of the Pyramids. Repr. from ''Orientalia Lovaniensia Periodica'' vol. 25 - Leuven: Departement Orientalistiek, 1994 - p. 221-236, 24 cm Subjects--Topical Terms: Offprint--Pyramids--Ancient Egypt