APA

Melden A. I., . (1950). Ethical theories: a book of readings. New York: Prentice-Hall.

Chicago

Melden Abrham Irving, . 1950. Ethical theories: a book of readings. New York: Prentice-Hall.

Harvard

Melden A. I., . (1950). Ethical theories: a book of readings. New York: Prentice-Hall.

MLA

Melden Abrham Irving, . Ethical theories: a book of readings. New York: Prentice-Hall. 1950.