Title: Twentieth-century science-fiction writers
Subjects: English Science fiction, Dictionaries, English fiction, Science-fiction americaine, Biografie, History and criticism, Science fiction, Histoire et critique, Fictie, American fiction, Bio-bibliography, Dictionnaires anglais, Science-fiction anglaise, American Science fiction, Engels, Amerikaans, Umschulungswerkstatten fur Siedler und Auswanderer, Literature and science, Science-Fiction-Literatur, Science-Fiction, Biobibliographie, Schriftsteller, Bibliografie, Science fiction, history and criticism
Time periods: 20thcentury