biblio toscana

Foundation

Asimov, Isaac New York : Doubleday, c1951

Serie: A science fiction book

Foundation

Asimov, Isaac New York : Avon, 1966

Serie: Avon Science Fiction ; 23168

Foundation

Asimov, Isaac London : Panther science fiction, 1969

Serie: Science fiction ; 10807

Foundation

Asimov, Isaac New York etc. : Bantam, 1991

Serie: The foundation novels