Hagerstrand, Torsten Innovation diffusion as a spatial process / Torsten Hagerstrand ; translation by Allan Pred - Chicago : University of Chicago Press, 1967 - xvi, 334 p. : ill. ; 24 cm. Includes index Translation of: Innovationsforloppet ur korologisk synpunkt ISBN: USD 16.00 Subjects--Topical Terms: Diffusion of innovations--Sweden Subjects--Geographic Terms: Sweden--Social conditions Dewey Class. No.: 910.018