Columbia subject headings:
American fiction--20th century--History and criticism.
Children's stories, American--History and criticism.
Children's stories, English--History and criticism.
English fiction--20th century--History and criticism.
Fantasy fiction, American--History and criticism.
Fantasy fiction, English--History and criticism.
Mabinogion--Influence.
Mythology, Celtic, in literature.
Mythology, Welsh, in literature.
Harvard subject headings:
American fiction--20th century--History and criticism
American literature--Celtic influences.
Children's stories, American--History and criticism
Children's stories, English--History and criticism
English fiction--20th century--History and criticism
English literature--Celtic influences
Fantasy fiction, American--History and criticism.
Fantasy fiction, English--History and criticism.
Mabinogion--Influence.
Medievalism--English-speaking countries.
Mythology, Celtic, in literature.
Mythology, Celtic--Wales
Mythology, Welsh, in literature.
Tales, Medieval--Adaptations--History and criticism.
Tales--Wales--Adaptations
Princeton subject headings:
American fiction--20th century--History and criticism.
Children's stories, American--History and criticism.
Children's stories, English--History and criticism.
English fiction--20th century--History and criticism.
Fantasy fiction, American--History and criticism.
Fantasy fiction, English--History and criticism.
Mabinogion--Influence.
Mythology, Celtic, in literature.
Mythology, Welsh, in literature.