Hester R. E. & Harrison R. M. (2010). Ecosystem Services. Cambridge, RSC Publishing, 2010.
Cita Chicago (17th ed.)Hester R. E. i Harrison R. M. Ecosystem Services. Cambridge, RSC Publishing, 2010, 2010.
Cita MLA (9th ed.)Hester R. E. i Harrison R. M. Ecosystem Services. Cambridge, RSC Publishing, 2010, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.