Lane, J., & O' Sullivan, M. (1999). A Twentieth-century American reader. Washington, D.C.: Published by the U.S. Information Agency, Division for the Study of the U.S..

Lane, Jack, و Maurice O' Sullivan. A Twentieth-century American Reader. Washington, D.C.: Published by the U.S. Information Agency, Division for the Study of the U.S., 1999.

Lane, Jack, و Maurice O' Sullivan. A Twentieth-century American Reader. Washington, D.C.: Published by the U.S. Information Agency, Division for the Study of the U.S., 1999.