Tucker, R. W. (1968). Nation or empire? The debate over American foreign policy. Washington: The John Hopkins University.
Trích dẫn kiểu ChicagoTucker, Robert W. Nation or Empire? The Debate Over American Foreign Policy. Washington: The John Hopkins University, 1968.
MLA引文Tucker, Robert W. Nation or Empire? The Debate Over American Foreign Policy. Washington: The John Hopkins University, 1968.
警告:这些引文格式不一定是100%准确.