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.. 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 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. the oxford encyclopedia of american urban history.. volume 1 /