SpringerLink (Online service), Ouderkirk, W., & Preston, C. J. (2007). Nature, value, duty: Llife on earth with Holmes Rolston, III. Springer.
Chicago Style (17th ed.) CitationSpringerLink (Online service), Wayne Ouderkirk, and Christopher J. Preston. Nature, Value, Duty: Llife on Earth with Holmes Rolston, III. Dordrecht: Springer, 2007.
MLA (8th ed.) CitationSpringerLink (Online service), et al. Nature, Value, Duty: Llife on Earth with Holmes Rolston, III. Springer, 2007.
Warning: These citations may not always be 100% accurate.