@inbook{400365, title = {Appendix II. On the Imaginary in Geometry}, booktitle = {Algebra identified with geometry}, series = {GDML\_Books}, publisher = {C. F. Hodgson \& sons, Gough Square, Fleet Stret}, address = {London}, year = {1874}, pages = {77-81}, url = {http://dml.mathdoc.fr/item/400365} }
(éd.). Appendix II. On the Imaginary in Geometry, dans Algebra identified with geometry, GDML_Books, (1874), pp. 77-81. http://gdmltest.u-ga.fr/item/400365/