References

Key, D.H. (2003) The Ecology of Adventure. Centre for Human Ecology: Edinburgh.

Key, D.H. (2015) Transpersonal patterns in the Natural Change Project. Self & Society, 43(2), pp.106–119.

Crinion, J.H. (2015) Creating an ecological-Self: How the Natural Change project uses Ecopsychology in an attempt to elicit social action for an ecologically sustainable future. University of Exeter.