O'Neill, J., Holland, A., & Light, A. (2008). Environmental values. : Routledge ; Simultaneously published in the USA and Canada by Routledge.
Chicago-viite (17. p.)O'Neill, John, Alan Holland, ja Andrew Light. Environmental Values. Abingdon, Oxon : New York, NY: : Routledge ; Simultaneously published in the USA and Canada by Routledge, 2008.
MLA-viite (9. p.)O'Neill, John, et al. Environmental Values. : Routledge ; Simultaneously published in the USA and Canada by Routledge, 2008.
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