APA
Zweigert Konrad, Kotz Hein, . (1998). Introduction to comparative law. New York: Oxford University Press.
Chicago
Zweigert Konrad, Kotz Hein, . 1998. Introduction to comparative law. New York: Oxford University Press.
Harvard
Zweigert Konrad, Kotz Hein, . (1998). Introduction to comparative law. New York: Oxford University Press.
MLA
Zweigert Konrad, Kotz Hein, . Introduction to comparative law. New York: Oxford University Press. 1998.