Spencer, H. (1978). The principles of ethics: In 2 volumes. Liberty Fund.
Chicago Style (17th ed.) CitationSpencer, Herbert. The Principles of Ethics: In 2 Volumes. Indianapolis: Liberty Fund, 1978.
MLA (9th ed.) CitationSpencer, Herbert. The Principles of Ethics: In 2 Volumes. Liberty Fund, 1978.
Warning: These citations may not always be 100% accurate.