APA (7th ed.) Citation

Langland, W., Duggan, H. N., & Hanna, R. (2004). Piers Plowman electronic archive. Published for The Medieval Academy of America and SEENET by Boydell & Brewer.

Chicago Style (17th ed.) Citation

Langland, William, Hoyt N. Duggan, and Ralph Hanna. Piers Plowman Electronic Archive. Cambridge, England: Published for The Medieval Academy of America and SEENET by Boydell & Brewer, 2004.

MLA (9th ed.) Citation

Langland, William, et al. Piers Plowman Electronic Archive. Published for The Medieval Academy of America and SEENET by Boydell & Brewer, 2004.