Gordon, A. H. The observation and use of animals in the development of scientific thought in the ancient world with especial reference to Egypt: Andrew H. Gordon. A cultural history of animals in Antiquity.(2007).

Gordon, Andrew H. "The Observation and Use of Animals in the Development of Scientific Thought in the Ancient World with Especial Reference to Egypt: Andrew H. Gordon." A Cultural History of Animals in Antiquity.(2007) .

Gordon, Andrew H. "The Observation and Use of Animals in the Development of Scientific Thought in the Ancient World with Especial Reference to Egypt: Andrew H. Gordon." A Cultural History of Animals in Antiquity.(2007), .