APA (7th ed.) Citation

Spencer, H. (1966). The works of Herbert Spencer (enl. ed.). Zeller.

Chicago Style (17th ed.) Citation

Spencer, Herbert. The Works of Herbert Spencer. enl. ed. Osnabrück: Zeller, 1966.

MLA (9th ed.) Citation

Spencer, Herbert. The Works of Herbert Spencer. enl. ed. Zeller, 1966.

Warning: These citations may not always be 100% accurate.