Gaya APA

Kasper, W. (1988). The Christian understanding of freedom and the history of freedom in the modern era. The Meeting and confrontation between christianity and the modern era in a postmodern situation. . Milwaukee: Milwaukee Marquette UP.

Gaya MLA

Kasper, Walter. "The Christian understanding of freedom and the history of freedom in the modern era. The Meeting and confrontation between christianity and the modern era in a postmodern situation. ". Milwaukee: Milwaukee Marquette UP, 1988. Buku.