By De Feo, Nicola Massimo..
Buenos Aires Amorrortu editores 2007 .
224 p. , Translation of : Introduzione a Weber, c 1970. 20 cm..
9789505181919

By Kalberg , Stephen..
Buenos Aires Prometeo Libros 2008 .
133[4] p. 21 cm..
9789875741966

By Giner de San Julián, Salvador, | Giner, Salvador..
Barcelona, España : Ariel, 2011 .
442 páginas ; 24 centímetros.
9788434413481