Columbia subject headings:
Harvard subject headings:
Baum, L. Frank (Lyman Frank), 1856-1919. Wizard of Oz
Children's stories, American--History and criticism
Children--Books and reading--United States--History--20th century
Fantasy fiction, American--History and criticism.
Oz (Imaginary place)
Princeton subject headings:
Baum, L. Frank (Lyman Frank), 1856-1919. Wizard of Oz.
Fiction.