Livre II. Surfaces Courbes.
Traité de la Géométrie Descriptive Textbd, GDML_Books, (1819), p. 50 / Harvested from
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@article{PPN600754081+DMDLOG_0004,
     title = {Livre II. Surfaces Courbes.},
     booktitle = {Trait\'e de la G\'eom\'etrie Descriptive Textbd},
     series = {GDML\_Books},
     publisher = {Courcier},
     address = {Paris},
     year = {1819},
     pages = {50},
     url = {http://dml.mathdoc.fr/item/PPN600754081+DMDLOG_0004}
}

 (éd.). Livre II. Surfaces Courbes., dans Traité de la Géométrie Descriptive Textbd, GDML_Books,  (1819), p. 50. http://gdmltest.u-ga.fr/item/PPN600754081+DMDLOG_0004/