Knowled, R. Economic and social geography : made simple / R. Knowled and J. Wareing. - Calcutta : Rupa, c1986. - xi, 336 p. ; ill., figs., tabs. ; 21 cm. - Made simple books 0464-2902 . Includes bibliographies and index. Subjects--Topical Terms: Economic geography.Human geography. LC Class. No.: HF1025 / .K56 1986