In this 1970 expanded edition, which includes a new Preface and Introduction and a long new chapter, Professor Bienen discusses the events and significance of the Arusha Declaration in the light of his continued research since 1967 while a Visiting Lecturer at University College, Nairobi. Originally published in 1967. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.