Jelaskan Bahan pustaka dari William Cullen Bryant

Muller, Gilbert H. William Cullen Bryant: Author of America . New York: State University of New York Press, 2008. ISBN 978-0-7914-7467-9

Symington, Andrew James. William Cullen Bryant: a biographical sketch: with selections from his poems and other writings. New York: Harper and Brothers, 1880. Google Books.