Johnston, R. (1991). Geography and geographers: : Anglo-American human geography since 1945. Edward Arnold.
Cita Chicago (17th ed.)Johnston, R.J. Geography and Geographers: : Anglo-American Human Geography Since 1945. New York: Edward Arnold, 1991.
Cita MLA (9th ed.)Johnston, R.J. Geography and Geographers: : Anglo-American Human Geography Since 1945. Edward Arnold, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.