Larousse
Christine Harrauer, Herbert Hunger
Kinder H. Y Hilgemann W.
James Flath, Ana Orenga, Carlos Rubio, Hiroto Ueda
Yoko Nakazawa
Oscar Conde
Real Academia Española
Real Academia Espanola
Academia Argentina De Letras
Junichi Matsuura
Nicola Abbagnano
Jacques Le Goff, Jean Claude Schmitt
Aa.Vv.
Junichi Matsuura, Lourdes Porta Fuentes
Rae
Oxford
Herder .
Cirlot Juan Eduardo
Umberto Eco
Academia
Sopena