SpringerLink (Online service) & Markussen, M. (2005). Valuation and conservation of biodiversity: Interdisciplinary perspectives on the convention on biological diversity. Springer-Verlag.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSpringerLink (Online service) और Michael Markussen. Valuation and Conservation of Biodiversity: Interdisciplinary Perspectives on the Convention on Biological Diversity. Berlin, Heidelberg: Springer-Verlag, 2005.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSpringerLink (Online service) और Michael Markussen. Valuation and Conservation of Biodiversity: Interdisciplinary Perspectives on the Convention on Biological Diversity. Springer-Verlag, 2005.
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