Poincaré. Henri - Leçons sur les Hypothèses Cosmogoniques, professées à la Sorbonne [Cours de la Faculté des Sciences de Paris].

Pairs, Librairie Scientifique A. Hermann, 1913, broché, 4to, 294 pp., 43 ills., avec un portrait en héliogravure et un notice sur Henri Poincaré par Ernest Lebon; très bon état. . .

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