APA
Joppke C., . (1998). Challenge to the Nation-State: immigration in Western Europe and the United States. Oxford: Oxford University Press.
Chicago
Joppke Christian, . 1998. Challenge to the Nation-State: immigration in Western Europe and the United States. Oxford: Oxford University Press.
Harvard
Joppke C., . (1998). Challenge to the Nation-State: immigration in Western Europe and the United States. Oxford: Oxford University Press.
MLA
Joppke Christian, . Challenge to the Nation-State: immigration in Western Europe and the United States. Oxford: Oxford University Press. 1998.