APA-ийн эшлэл(7 дахь хэвлэлт)

York Interdisciplinary Conference on the Fourteenth Century, Bothwell, J., Goldberg, P. J. P., & Ormrod, W. M. (2000). The problem of labour in fourteenth-century England. York Medieval Press in association with the Boydell Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

York Interdisciplinary Conference on the Fourteenth Century, James Bothwell, P. J. P. Goldberg, ба W. M. Ormrod. The Problem of Labour in Fourteenth-century England. Woodbridge, Suffolk, UK ; Rochester, NY, USA: York Medieval Press in association with the Boydell Press, 2000.

MLA -ийн эшлэл (9 дэх хэвлэлт)

York Interdisciplinary Conference on the Fourteenth Century, et al. The Problem of Labour in Fourteenth-century England. York Medieval Press in association with the Boydell Press, 2000.