APA-ийн эшлэл(7 дахь хэвлэлт)
M�orzer Bruyns, W. F. J. (2009). Sextants at Greenwich: A catalogue of the mariner's quadrants, mariner's astrolabes, cross-staffs, backstaffs, octants, sextants, quintants, reflecting circles and artificial horizons in the National Maritime Museum, Greenwich. Oxford University Press.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
M�orzer Bruyns, W. F. J. Sextants at Greenwich: A Catalogue of the Mariner's Quadrants, Mariner's Astrolabes, Cross-staffs, Backstaffs, Octants, Sextants, Quintants, Reflecting Circles and Artificial Horizons in the National Maritime Museum, Greenwich. Oxford: Oxford University Press, 2009.
MLA -ийн эшлэл (9 дэх хэвлэлт)
M�orzer Bruyns, W. F. J. Sextants at Greenwich: A Catalogue of the Mariner's Quadrants, Mariner's Astrolabes, Cross-staffs, Backstaffs, Octants, Sextants, Quintants, Reflecting Circles and Artificial Horizons in the National Maritime Museum, Greenwich. Oxford University Press, 2009.
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