Johnston, R. J. (1997). Geography and geographers: Anglo-American human geography since 1945 (5th ed.). Arnold.
Citazione stile Chigago Style (17a edizione)Johnston, R. J. Geography and Geographers: Anglo-American Human Geography Since 1945. 5th ed. London: Arnold, 1997.
Citatione MLA (9a ed.)Johnston, R. J. Geography and Geographers: Anglo-American Human Geography Since 1945. 5th ed. Arnold, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.