APA
Keller K., . (2000). Preserving the ocean circulation : implications for climate policy. Cambridge, Mass: National Bureau of Economic Research.
Chicago
Keller Klaus, . 2000. Preserving the ocean circulation : implications for climate policy. Cambridge, Mass: National Bureau of Economic Research.
Harvard
Keller K., . (2000). Preserving the ocean circulation : implications for climate policy. Cambridge, Mass: National Bureau of Economic Research.
MLA
Keller Klaus, . Preserving the ocean circulation : implications for climate policy. Cambridge, Mass: National Bureau of Economic Research. 2000.