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).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)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) .
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)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), .
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