Gaya APA
Brandt, R. (1959).
Ethical theory, the problems of normative and critical ethics. .
Englewood Cliffs:
NJ Prentice-Hall.
Gaya MLA
Brandt, R.B..
"Ethical theory, the problems of normative and critical ethics. ".
Englewood Cliffs:
NJ Prentice-Hall,
1959.
Buku.