Kemp, D. D. (1998). The environment dictionary. Routledge.
Cita Chicago (17th ed.)Kemp, David D. The Environment Dictionary. London: Routledge, 1998.
Cita MLA (9th ed.)Kemp, David D. The Environment Dictionary. Routledge, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.