Tucker, R. W. (1968). Nation or empire? The debate over American foreign policy. Washington: The John Hopkins University.
استشهاد بنمط شيكاغوTucker, Robert W. Nation or Empire? The Debate Over American Foreign Policy. Washington: The John Hopkins University, 1968.
MLA استشهادTucker, Robert W. Nation or Empire? The Debate Over American Foreign Policy. Washington: The John Hopkins University, 1968.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.