Kane, George (Ed.). Piers Plowman: The A Version. 2nd ed., London/Los Angeles 1988.
Kane, George and E. Talbot Donaldson (Eds.). Piers Plowman: The B Version. 2nd ed., London/Los Angeles 1988.
Pearsall, Derek (Ed.). Piers Plowman: An Edition of the C-Text. London 1978.
Rigg, A. G. and C. Brewer (Eds.). Piers Plowman: The Z Version. Toronto 1983.
Schmidt, A. V. C. (Ed.). William Langland, The Vision of Piers Plowman: A Critical Edition of the B-Text Based on Trinity College Cambridge MS B.15.17. 2nd ed., London 1995.
Schmidt, A. V. C. (Transl.). William Langland, Piers Plowman: A New Translation of the B-Text. Oxford 1992.
Skeat, W. W. (Ed.). Piers Plowman: A Parallel-Text Edition. Oxford 1886.
Studies:
Alford, John A. (Ed.). A Companion to Piers Plowman. London/Los Angeles 1988.
Hartung, A. E. (Ed.). A Manual of Writings in Middle English 1050-1500. Vol. 7. New Haven 1988.
The Yearbook of Langland Studies. East Lansing 1987ff.