Quadrilaterals.
Oppermann, A. **E 5125.56 Premiers éléments d’une théorie du quadrilatére complet, — Paris. Gauthier-Villars & ci*. 1919. 76 pp. Diagrams, 24cm. in 8s. Annexe bibliographique, pp. 67-76.
This card was printed at the Boston y Public Library, November 12, 1920.
M357 — Quadrilaterals.