€ 7,00
XXXIII,127 p. Cloth. 17 cm (Text & commentary) (Backstrip partly split)
London, MacMillan and Co., 1926.
med verrall 1926
Paris, Garnier Frères, (1956).
Torino, Libreria Editrice Internazionale, 1913 – 1925.
Madrid, Consejo Superior de Investigaciones Científicas, 1997.
Lpz./Bln., Tbn., 1927.