L' étape nécessaire
By: Luc Durtain.
Series: His Conquêtes du monde
Publisher: E. Flammarion
Published: 1938
Place of publication: Paris
Language: fre
Number of pages: 212
Notes: First edition (Paris, E. Sansot et cie, 1907 [i.e. 1906]) published under author's real name, André Nepveu.  cf. p. 13; Talvert et Place.