the oxford encyclopedia of empirical international relations theory.. volume 4,. t-w index / The Oxford encyclopedia of empirical international relations theory.. Volume 4,. T-W Index / the oxford encyclopedia of empirical international relations theory.. volume 1,. a-e / the oxford encyclopedia of empirical international relations theory.. volume 2,. f-n / the oxford encyclopedia of empirical international relations theory.. volume 3,. o-s / The Oxford encyclopedia of empirical international relations theory.. Volume 1,. A-E / The Oxford encyclopedia of empirical international relations theory.. Volume 2,. F-N / The Oxford encyclopedia of empirical international relations theory.. Volume 3,. O-S / The Oxford encyclopedia of empirical international relations theory. the oxford encyclopedia of american urban history.. volume 1 /