Columbia subject headings:
Harvard subject headings:
Authors, American--Biography.
Gernsback, Hugo, 1884-1967.
Inventors--United States--Biography
Periodicals--Publishing--United States--History.
Publishers and publishing--United States--Biography
Science fiction, American--History and criticism.
Princeton subject headings:
Authors, American--Biography.
Gernsback, Hugo, 1884-1967.
Inventors--United States--Biography.
Periodicals--Publishing--United States--History.
Publishers and publishing--United States--Biography.
Science fiction, American--History and criticism.