APA (7th ed.) Citation

Hospers, J. (1970). Human conduct: An introduction to the problems of ethics (2. impr.). Harcourt, Brace & World.

Chicago Style (17th ed.) Citation

Hospers, John. Human Conduct: An Introduction to the Problems of Ethics. 2. impr. New York [u.a.]: Harcourt, Brace & World, 1970.

MLA (9th ed.) Citation

Hospers, John. Human Conduct: An Introduction to the Problems of Ethics. 2. impr. Harcourt, Brace & World, 1970.