APA
Jahn D., Joas M. & Kern K. (2008). Governing a common sea : environmental policies in the Baltic sea region. London: Earthscan.
Chicago
Jahn Detlef, Joas Marko and Kern Kristine. 2008. Governing a common sea : environmental policies in the Baltic sea region. London: Earthscan.
Harvard
Jahn D., Joas M. and Kern K. (2008). Governing a common sea : environmental policies in the Baltic sea region. London: Earthscan.
MLA
Jahn Detlef, Joas Marko and Kern Kristine. Governing a common sea : environmental policies in the Baltic sea region. London: Earthscan. 2008.