Articole
1. Bray, Hiawatha, 2014, You Are Here: From the Compass to GPS, the History and Future of How We Find Ourselves, Basic Books, New York. (https://www.twirpx.com/file/1430655/)
Harley, J. B., David Woodward, The History of Cartography, Volume One, 1987, The Universtiy of Chicago Press, Chicago & London. (https://press.uchicago.edu/books/HOC/HOC_V1/Volume1.html)
Resurse educative
1. https://storymaps.arcgis.com/stories/fce3281ff9ea45488b569ab6bd119228
3. https://ascensiuni.wordpress.com/2010/12/22/orientare-dupa-semnele-naturii/
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