Tohutoro APA (7th ed.)
Barney, S. A. (2006). The Penn commentary on Piers Plowman. University of Pennsylvania Press.
Tohutoru Kātū Chicago (17th ed.)
Barney, Stephen A. The Penn Commentary on Piers Plowman. Philadelphia, Pa.: University of Pennsylvania Press, 2006.
Tohutoro MLA (9th ed.)
Barney, Stephen A. The Penn Commentary on Piers Plowman. University of Pennsylvania Press, 2006.
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