R.N. 23844/72 ISSN 0970-0293 Cambridge Origins of Terrorism Psychologies, Ideologies, Theologies, States of Mind Edited by WALTER REICH A pioneering attempt to explain the nature and sources of terrorist behaviour in all its diversity. £27.50 net HB 0 521 38563 6 304 pp. £9.95 net PB 0521 38589 X Woodrow Wilson Center Series Now in paperback Formal Theories in International Relations MICHAEL NICHOLSON A critical account of the state of the art in formal international relations theory, written with the interests of the mathematically diffident in mind. £12.95 net PB 0 521 39967 X 256 pp. Cambridge Studies in International Relations 3 Now in paperback Transformation and Continuity in Revolutionary Ethiopia CHRISTOPHER CLAPHAM '... an important book that sheds new light on state and society in post-revolutionary Ethiopia.' Journal of Communist Studies 'His study ... is profound, dispels many popular misconceptions, and may well prove seminal.' Middle Eastern Studies £14.95 net PB 0 521 39650 6 328 pp. African Studies Series 61 Now in paperback Race and Empire in British Politics Second Edition PAUL B. RICH '... this study genuinely breaks new ground. It illuminates our insecure, polyethnic society and thereby underscores the grandeur and the tragedy of the black man's burden in modern Britain.' The Guardian £15.00 net PB 0 521 38958 5 272 pp. Comparative Ethnic and Race Relations Series South Asians Overseas Migration and Ethnicity Edited by COLIN CLARKE, CERI PEACH and STEVEN VERTOVEC A multi-disciplinary collection providing a detailed account of the experience of migrant communities after the end of slavery in the British Empire. £35.00 net HB 0 521 37543 6 400 pp. Comparative Ethnic and Race Relations BSB Cambridge ^iP University Press ,The Edinburgh Building, Cambridge CB2 2RU, UK.