JSTOR Ref
Derek Pearsall J. A. Burrow and A. I. Doyle (introd.), Thomas Hoccleve: A Facsimile of the Autograph Verse Manuscripts: Henry E. Huntington Library, San Marino (California), MSS HM iii and 744; University Library, Durham (England), MS Cosin V.III.9, Early English Text Society, Supplementary Series 19 74.1 (2005), 134-136 DOI:10.2307/43632266
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