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Rostovtzeff, M.I. (1922). A Large Estate in Egypt in the Third Century BC. Madison, University of Wisconsin, 123 [7]Arkiveret 7. januar 2017 hos Wayback Machine. (2012, 12. oktober)
Rostovtzeff, M.I. (1922). A Large Estate in Egypt in the Third Century BC. Madison, University of Wisconsin, 123. [8]Arkiveret 7. januar 2017 hos Wayback Machine. (2012, 12. oktober)