Lawrence Hargrave : explorer, inventor & aviation experimenter / W. Hudson Shaw and Olaf Ruhen. Shaw, W. Hudson. Ruhen, Olaf, joint author. Hargrave, Lawrence. Aeronautics Australia Biography. 629.1300924 SHL Includes index. Bibliography: p. 181. Stanmore, N.S.W. : Cassell Australia, 1977. 1977. 1977 Text xix, 187 p., [4] p.: eng Australia