@article{1183425742, author = {Smith, David Eugene}, title = {Review: Emma Gifford, Natural Tangents}, journal = {Bull. Amer. Math. Soc.}, volume = {27}, number = {9-10}, year = {1921}, language = {en}, url = {http://dml.mathdoc.fr/item/1183425742} }
Smith, David Eugene. Review: Emma Gifford, Natural Tangents. Bull. Amer. Math. Soc., Tome 27 (1921) no. 9-10, . http://gdmltest.u-ga.fr/item/1183425742/