Sumer is icumen in (anonymous)


 * "Sumer is icumen in" in the Harley 978 manuscript (13th century).
 * "Cuckoo Song" in Oxford Book of English Verse 1250-1900, ed. by Arthur Quiller-Couch (1931).
 * "Cuckoo Song" in Oxford Book of English Verse 1250-1918, ed. by Arthur Quiller-Couch (1940).