APA (7th ed.) Zitazioa
Brears, R. C. Nature-based Solutions to 21st Century Challenges. Routledge.
Chicago Style (17th ed.) Zitazioa
Brears, Robert C. Nature-based Solutions to 21st Century Challenges. Oxon, Inglaterra ; Nueva York, EUA: Routledge.
MLA (9th ed.) Zitazioa
Brears, Robert C. Nature-based Solutions to 21st Century Challenges. Routledge.
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