Columbia subject headings:
Harvard subject headings:
Children's literature--20th century--History and criticism.
Children's literature--21st century--History and criticism.
Ewers, Hans-Heino.
Young adult literature--20th century--History and criticism.
Young adult literature--21st century--History and criticism.
Princeton subject headings:
Children's literature--20th century--History and criticism.
Children's literature--21st century--History and criticism.
Young adult literature--20th century--History and criticism.
Young adult literature--21st century--History and criticism.