Wright, Thomas,
ed.
Songs and Carols from a manuscript…of the Fifteenth
Century.
Percy Society
23. London: Richards, 1847: 40-1.
Greene, Richard Leighton.
The Early English Carols.
Oxford: Clarendon, 1935; 2nd ed., rev., Oxford: Clarendon,
1977: 241; 1977, 214.