First published in 1974. Routledge is an imprint of Taylor & Francis, an informa company. This book is divided into seven sections: Europe and the Arab World are both geographical units in addition to' having political ties, and therefore these are grouped the Ministers together by office: the Prime Ministers of all the countries are followed by the Foreign Ministers of all the countries.

First published in 1980. Routledge is an imprint of Taylor & Francis, an informa company.

This new edition of Volume II (last published in 1994) has been extensively expanded and revised in all areas. Fully updated, the new edition includes major changes and covers a span of topics from archaeology through medieval history to statistics. It includes philosophy, psychology, religion, social sciences, geography, biology and history. All areas have been completely updated with additional material in economics, business and management.