General References
The Younger American Poets. Jessie B. Rittenhouse, 1904.
Tendencies in Modern American Poetry. Amy Lowell, 1917.
The Advance of English Poetry in the Twentieth Century. W. L. Phelps, 1918. (Latter half, American Poetry.)
Convention and Revolt in Poetry. G. L. Lowes, 1919.
The New Era in American Poetry. L. Untermeyer, 1919.
Collections
A Little Book of Modern Verse. Edited by Jessie B. Rittenhouse.
Some Imagist Poets (three annual volumes in a completed series) 1915, 1916, 1917.
An Anthology of Magazine Verse (annual volumes in a continuing series). Edited by W. S. Braithwaite, since 1915.