Columbia subject headings:
English language--Middle English, 1100-1500--Glossaries, vocabularies, etc.
Langland, William, 1330?-1400? Piers Plowman.
Langland, William, 1330?-1400?--Knowledge and learning.
Langland, William, 1330?-1400?--Language--Glossaries, etc.
Law, Medieval--Dictionaries.
Law.
Harvard subject headings:
English language--Middle English, 1100-1500--Glossaries, vocabularies, etc.
Langland, William, 1330?-1400? Piers Plowman.
Langland, William, 1330?-1400?--Knowledge--Law.
Langland, William, 1330?-1400?--Language--Glossaries, vocabularies, etc.
Law, Medieval--Dictionaries.
Princeton subject headings:
English language--Middle English, 1100-1500--Glossaries, vocabularies, etc.
Langland, William, 1330?-1400? Piers Plowman.
Langland, William, 1330?-1400?--Knowledge--Law.
Langland, William, 1330?-1400?--Language--Glossaries, etc.
Law, Medieval--Dictionaries.