Columbia subject headings:
Posters in education.
Posters--England--London.
Posters--Study and teaching.
Prints--England--London.
Prints--Study and teaching.
Victoria and Albert Museum.
Harvard subject headings:
Posters in education.
Posters--England--London.
Posters--Study and teaching.
Prints--England--London.
Prints--Study and teaching.
Victoria and Albert Museum
Princeton subject headings: