APA
Mothershead J. L., . (1955). Ethics; modern conceptions of the principles of right. New York: Henry Holt.
Chicago
Mothershead John L, . 1955. Ethics; modern conceptions of the principles of right. New York: Henry Holt.
Harvard
Mothershead J. L., . (1955). Ethics; modern conceptions of the principles of right. New York: Henry Holt.
MLA
Mothershead John L, . Ethics; modern conceptions of the principles of right. New York: Henry Holt. 1955.