Williams, M. J. (1975). Development co-operation: Efforts and policies of the members of the development asistance committee. Paris: Organisation for Economic Co-operation and Development.

Williams, Maurice J. Development Co-operation: Efforts and Policies of the Members of the Development Asistance Committee. Paris: Organisation for Economic Co-operation and Development, 1975.

Williams, Maurice J. Development Co-operation: Efforts and Policies of the Members of the Development Asistance Committee. Paris: Organisation for Economic Co-operation and Development, 1975.