APA
Kirkby J., Timberlake L. & O'Keefe P. (1995). The Earthscan reader in sustainable development. London: Earthscan.
Chicago
Kirkby J(ed), Timberlake L(ed) and O'Keefe P(ed). 1995. The Earthscan reader in sustainable development. London: Earthscan.
Harvard
Kirkby J., Timberlake L. and O'Keefe P. (1995). The Earthscan reader in sustainable development. London: Earthscan.
MLA
Kirkby J(ed), Timberlake L(ed) and O'Keefe P(ed). The Earthscan reader in sustainable development. London: Earthscan. 1995.