Drachmann, Aage Gerhardt, 1891-1980. The mechanical technology of Greek and Roman antiquity, a study of the literary sources. - Madison, Copenhagen, Munksgaard; University of Wisconsin Press, 1963. - 218 p. illus. 24 cm. LCCN: 63002657 /L Subjects--Personal Names: Hero of Alexandria Automata Subjects--Topical Terms: MechanicsMechanics--Early works to 1800 LC Class. No.: T