C.G. Heden Social innovations for development - Oxford Pergamon Press 1984 - 167p C.G. Heden & A. King: Social innovations for development. Oxford. Pergamon Press, 1984. 0-08-031300-0--(361.606HED) ENGLISH ISBN: 0-08-031300-0 Dewey Class. No.: 361.606 / HED