APA استشهاد

Johnston, R. J. (1991). Geography and geographers: Anglo- American human geography since 1945 (Fourth ed.). London: Edward Arnold.

استشهاد بنمط شيكاغو

Johnston, R. J. Geography and Geographers: Anglo- American Human Geography Since 1945. Fourth ed. London: Edward Arnold, 1991.

MLA استشهاد

Johnston, R. J. Geography and Geographers: Anglo- American Human Geography Since 1945. Fourth ed. London: Edward Arnold, 1991.

تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.