Goudie, A. (1986). The human impact: On the natural environment. Blackwell.
Cita Chicago (17th ed.)Goudie, Andrew. The Human Impact: On the Natural Environment. Oxford: Blackwell, 1986.
Cita MLA (9th ed.)Goudie, Andrew. The Human Impact: On the Natural Environment. Blackwell, 1986.
Atenció: Aquestes cites poden no estar 100% correctes.