Ramsden, E. N. Water : selected topics / E.N. Ramsden, R.E. Lee. - 2nd ed. - Leckhampton, Cheltenham : Stanley Thornes, 1990. - viii, 87 p. : ill., maps. - Extending science ; no. 2 . ISBN: 074804485 LCCN: 92015067 Subjects--Topical Terms: Water.