The riddle of the universe /
The riddle of the universe / by Edward Douglas Fawcett - London : Edward Arnold, 1893 - xvi, 440 p. ; 22 cm.
Versión digitalizada disponible a través de Cornell University Library desde este enlace: https://archive.org/details/cu31924029026792
Subtítulo: "Being an attempt to determine the first principles of metaphysic, considered as an inquiry into the conditions and import of consciousness"
