APA (7th ed.) Citation

Orr, D. W. (2010). Hope is an imperative: The essential David Orr. Island Press. https://doi.org/10.5822/978-1-61091-017-0

Chicago Style (17th ed.) Citation

Orr, David W. Hope Is an Imperative: The Essential David Orr. Washington, DC: Island Press, 2010. https://doi.org/10.5822/978-1-61091-017-0.

MLA (9th ed.) Citation

Orr, David W. Hope Is an Imperative: The Essential David Orr. Island Press, 2010. https://doi.org/10.5822/978-1-61091-017-0.