Thorp, W., Johnson, T. H., Canby, H. S., Ludwig, R. M., & Spiller, R. E. (1959). Literary history of the United States: Bibliography supplement. New York: Macmillan.

Thorp, Willard, Thomas Herbert Johnson, Henry Seidel Canby, Richard M. Ludwig, and Robert Ernest Spiller. Literary History of the United States: Bibliography Supplement. New York: Macmillan, 1959.

Thorp, Willard, et al. Literary History of the United States: Bibliography Supplement. New York: Macmillan, 1959.