Introduction to statistics for geographers and earth scientists / R.B.G. Williams. Williams, R. B. G. Geography Statistical methods. Geology Statistical methods. G70.3 519 19 WII Includes index. Statistical mathematics. - For geography (BNB/PRECIS) Bibliography: p. 336-343. London : Macmillan, 1984. 1984. 1984 Text viii, 349 p. : eng