Greene, Richard Leighton.
The Early English Carols.
Oxford: Clarendon, 1935; 2nd ed., rev., Oxford: Clarendon,
1977: 311; 1977, 281.
Robbins, Rossell Hope.
“The Bradshaw Carols.”
PMLA
81 (1966): 308-10: 309-10.
Grigson, Geoffrey,
ed.
The Faber Book of Popular Verse.
London: Faber, 1971: 106.
Croft, P. J.
“The ‘Friar of Order Gray’ and the Nun.”
Review of English Studies
n.s. 32 (1981): 1-16: 16.