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LADD, George Eldon. (1974). presence of the future, The . Grand Rapids, Mich.: William B. Eerdmans Pub. Co..

Gaya Chicago

LADD, George Eldon. presence of the future, The. Grand Rapids, Mich.: William B. Eerdmans Pub. Co., 1974. Text.

Gaya MLA

LADD, George Eldon. presence of the future, The. Grand Rapids, Mich.: William B. Eerdmans Pub. Co., 1974. Text.

Gaya Turabian

LADD, George Eldon. presence of the future, The. Grand Rapids, Mich.: William B. Eerdmans Pub. Co., 1974. Print.