Cita APA

Johnston, R. J. 1., & Johnston, R. J. 1. Geography and geographers: Anglo-American human geography since 1945 (3. edition --.).

Citación estilo Chicago

Johnston, Ronald John 1941-, y Ronald John 1941- Johnston. Geography and Geographers: Anglo-American Human Geography Since 1945. 3. edition --.

Cita MLA

Johnston, Ronald John 1941-, y Ronald John 1941- Johnston. Geography and Geographers: Anglo-American Human Geography Since 1945. 3. edition --.