Roberts, P. B. (1986). Stephanus de Lingua-Tonante: Studies in the sermons of Stephen Langton. Pontifical Institute of Mediaeval Studies.
Chicago Style (17th ed.) CitationRoberts, Phyllis Barzillay. Stephanus De Lingua-Tonante: Studies in the Sermons of Stephen Langton. Toronto: Pontifical Institute of Mediaeval Studies, 1986.
MLA (9th ed.) CitationRoberts, Phyllis Barzillay. Stephanus De Lingua-Tonante: Studies in the Sermons of Stephen Langton. Pontifical Institute of Mediaeval Studies, 1986.
Warning: These citations may not always be 100% accurate.