Pierssené, A. (1999). Explaining our world: An approach to the art of environmental interpretation. E & FN Spon.
Cita Chicago (17th ed.)Pierssené, Andrew. Explaining Our World: An Approach to the Art of Environmental Interpretation. London ; New York: E & FN Spon, 1999.
Cita MLA (9th ed.)Pierssené, Andrew. Explaining Our World: An Approach to the Art of Environmental Interpretation. E & FN Spon, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.