APA
Ruhl J. B., Kraft S. E. & Lant C. L. (2007). Law and policy of ecosystem services. Washington: Island Press.
Chicago
Ruhl J B, Kraft Steven E and Lant Christopher L. 2007. Law and policy of ecosystem services. Washington: Island Press.
Harvard
Ruhl J. B., Kraft S. E. and Lant C. L. (2007). Law and policy of ecosystem services. Washington: Island Press.
MLA
Ruhl J B, Kraft Steven E and Lant Christopher L. Law and policy of ecosystem services. Washington: Island Press. 2007.