@article{PPN588883468+DMDLOG_0013, title = {Chapter IX. On Geometry.}, booktitle = {Differential Calculus Vol. I}, series = {GDML\_Books}, publisher = {UP}, address = {Oxford}, year = {1852}, pages = {260}, url = {http://dml.mathdoc.fr/item/PPN588883468+DMDLOG_0013} }
(éd.). Chapter IX. On Geometry., dans Differential Calculus Vol. I, GDML_Books, (1852), p. 260. http://gdmltest.u-ga.fr/item/PPN588883468+DMDLOG_0013/