Block 4 water resources : science, a second level course/

Block 4 water resources : science, a second level course/ prepared by an Open University Course Team. - Walton Hall, Milton Keynes : The Open University, 1986. - 96 p. : ill. (some col.), maps (some col.) ; 30 cm. - S238 the earth's physical resources. .

0335161596 (pbk.)


Water resources development.