Austen, Ralph A. Northwest Tanzania under German and British rule : colonial polic y and tribal politics, 1889-1939/ by Ralph A. Austen. - New Haven : Yale University Press, 1968. - x, 307 p. : map. ; 25 cm. Based on a thesis, New York University. Includes bibliographcal references: p. 276-289. Subjects--Geographic Terms: Tanzania--Politics and government. Dewey Class. No.: 320.96782