Casey, William Van Etten. The Berrigans. New York: Avon, 1971.
Curtis, Richard. The Berrigan Brothers: the Story of Daniel and Philip Berrigan. New York: Hawthorn Books, 1974.
Halpert, Stephen. Witness of the Berrigans. Garden City, N.Y.: Doubleday & Co., 1972.
Lockwood, Lee. Daniel Berrigan: Absurd Convictions, Modest Hopes. New York: Random House, 1972.
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