APA (7th ed.) Citation

Becker, W. S., & Hagens, B. (1991). The Rings of Gaia. The power of place, 257-279.

Chicago Style (17th ed.) Citation

Becker, William S., and Bethe Hagens. "The Rings of Gaia." The Power of Place 1991: 257-279.

MLA (9th ed.) Citation

Becker, William S., and Bethe Hagens. "The Rings of Gaia." The Power of Place, 1991, pp. 257-279.