Kemp, D. D. (1994). Global environmental issues: A climatological approach (2nd ed.). Routledge.
Cita Chicago (17th ed.)Kemp, David D. Global Environmental Issues: A Climatological Approach. 2nd ed. London ; New York: Routledge, 1994.
Cita MLA (9th ed.)Kemp, David D. Global Environmental Issues: A Climatological Approach. 2nd ed. Routledge, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.