Еуклидова геометрија — разлика између измена

* {{Cite book |ref= harv|last=Ball | first = W.W. Rouse | title = A Short Account of the History of Mathematics | origyear = |url=| edition = 4th ed. [Reprint. Original publication: London: Macmillan & Co., 1908] |year=1960 | publisher = Dover Publications | location = New York |isbn=978-0-486-20630-1| pages=50-62 }}

* {{Cite book |ref= harv|last=Heath | first = Thomas L. | title = The Thirteen Books of Euclid's Elements | edition = 2nd ed. [Facsimile. Original publication: Cambridge University Press, 1925] |year=1956 | publisher = Dover Publications | location = New York }}

* {{Cite book |ref= harv|author=Misner, Thorne, and Wheeler|title=Gravitation|publisher = W.H. Freeman|year= 1973}}

* {{Cite book |ref= harv|author=Mlodinow|title=Euclid's Window|publisher = The Free Press|year= 2001}}