Bergson, Henry , 1859-1941 Introduccion a la metafisica, La risa / Henry Bergson / coaut. Manuel Garcia Morente - 2a ed - Mexico : Porrua , 1996 , c1986. - 120 p. pb. - Sepan Cuantos No. 491 . ISBN: 968-452-118-9 Subjects--Topical Terms: Metafisica Dewey Class. No.: 110 BER