€ 18,00
158 p. Stiff wrappers. 24 cm (Trade edition of the dissertation, Utrecht) (Short bibliographic note on the front flyleaf)
Assen, Van Gorcum, 1951.
Paris 1958.
Oxford, Clarendon Press, (1966).
Groningen, Batavia, Wolters, 1944.
Torino, Libreria Editrice Internazionale, 1913 – 1925.
