APA
Weston A., . (2008). A 21st century ethical toolbox. Oxford: Oxford University Press.
Chicago
Weston Anthony, . 2008. A 21st century ethical toolbox. Oxford: Oxford University Press.
Harvard
Weston A., . (2008). A 21st century ethical toolbox. Oxford: Oxford University Press.
MLA
Weston Anthony, . A 21st century ethical toolbox. Oxford: Oxford University Press. 2008.