APA (7th ed.) Citation

Harding, D. W., Lewis, D. M., & Boardman, J. (1994). The west and north. Celtic Europe. The Cambridge ancient history ; 6: The fourth century B.C., 404-421.

Chicago Style (17th ed.) Citation

Harding, D. W., David M. Lewis, and John Boardman. "The West and North. Celtic Europe." The Cambridge Ancient History ; 6: The Fourth Century B.C. 1994: 404-421.

MLA (8th ed.) Citation

Harding, D. W., et al. "The West and North. Celtic Europe." The Cambridge Ancient History ; 6: The Fourth Century B.C., 1994, pp. 404-421.