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  Perring, John Shae; Howard-Vyse, Richard William Howard: Operations carried on at the Pyramids of Gizeh in 1837: with an account of a voyage into upper Egypt, and Appendix (Band 3): Appendix (London, 1842)

  http://digi.ub.uni-heidelberg.de/diglit/howard_vyse1842bd3/0068?sid=a4f1bc73ae1558d94d7d02ca5c822967

  Perring, John Shae; Howard-Vyse, Richard William Howard: Operations carried on at the Pyramids of Gizeh in 1837: with an account of a voyage into upper Egypt, and Appendix (Band 3): Appendix; Universitätsbibliothek Heidelberg (ub@ub.uni-heidelberg.de)

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  Perring, John Shae; Andrews, E. J. [Hrsg.]: The pyramids of Gizeh: from actual survey and admeasurement (Band 3): The pyramids to the southward of Gizeh and at Abou Roash... (London, 1842)

  http://digi.ub.uni-heidelberg.de/diglit/perring1842bd3/0012?sid=30143f5b5dcc428d280b27c4cc80c004

  Perring, John Shae; Andrews, E. J. [Hrsg.]: The pyramids of Gizeh: from actual survey and admeasurement (Band 3): The pyramids to the southward of Gizeh and at Abou Roash...; Universitätsbibliothek Heidelberg (ub@ub.uni-heidelberg.de)

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