APA
Keddy P. A., . (2007). Plants and vegetation. Cambridge: Cambridge University Press.
Chicago
Keddy Paul A, . 2007. Plants and vegetation. Cambridge: Cambridge University Press.
Harvard
Keddy P. A., . (2007). Plants and vegetation. Cambridge: Cambridge University Press.
MLA
Keddy Paul A, . Plants and vegetation. Cambridge: Cambridge University Press. 2007.