Sources list for THE ECHOING GREEN FROM SONGS OF INNOCENCE

Blake, William. (1991). Songs of Innocence and of Experience. Ed. Andrew Lincoln. From Blake's Illuminated Books, Vol. 2, General Ed. David Bindman. Princeton: Princeton University Press and The William Blake Trust.
William Blake

Gerry Ellis, Wessex Publications, "The Songs of Innocence and Experience by William Blake- An A Level English Workbook
The Poetry of William Blake

Oxford University Press, "William Blake Songs of Innocence and of Experience"
The Poetry of William Blake

Blake, William, and Alfred Kazin. "Songs of Innocence and of Experience." The Portable Blake : Selected and Arranged with an Introduction by Alfred Kazin. Ed. Alfred Kazin. New York: Penguin Books, 1976. 83-118.
Voltaire and Blake: Against Religion

Bloom, Harold. Modern Critical Interpretations William Blake's Songs of Innocence and Experience. New York: Chelsea House Publishers.1987. 7-10.
"London" by William Blake