@article{PPN585262896+DMDLOG_0024, title = {Chapter XX. Arithmetic and Geometric Progressions and the Series allied to them.}, booktitle = {Algebra Part 1}, series = {GDML\_Books}, publisher = {Black}, address = {Edinburgh}, year = {1889}, pages = {480}, url = {http://dml.mathdoc.fr/item/PPN585262896+DMDLOG_0024} }
(éd.). Chapter XX. Arithmetic and Geometric Progressions and the Series allied to them., dans Algebra Part 1, GDML_Books, (1889), p. 480. http://gdmltest.u-ga.fr/item/PPN585262896+DMDLOG_0024/