Columbia subject headings:
England--Social life and customs--1066-1485.
English literature--Middle English, 1100-1500.
Langland, William, 1330?-1400? Piers Plowman.
Harvard subject headings:
England--Social life and customs--1066-1485
English literature--Middle English, 1100-1500
Langland, William, 1330?-1400? Piers Plowman.
Manners and customs in literature.
Princeton subject headings:
England--Social life and customs--1066-1485.
English literature--Middle English, 1100-1500.
Langland, William, 1330?-1400? Piers Plowman.
Langland, William, 1330?-1400?--Contemporary England.
Manners and customs in literature.