Johnston, R. (1991). Geography and geographers: : Anglo-American human geography since 1945. Edward Arnold.
Citazione stile Chigago Style (17a edizione)Johnston, R.J. Geography and Geographers: : Anglo-American Human Geography Since 1945. New York: Edward Arnold, 1991.
Citatione MLA (9a ed.)Johnston, R.J. Geography and Geographers: : Anglo-American Human Geography Since 1945. Edward Arnold, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.