APA (7th ed.) Citation

Young, L., Fitzgerald, B., & Fergus, P. A. (2006). The power of language. Equinox.

Chicago Style (17th ed.) Citation

Young, Lynne, Brigid Fitzgerald, and Patricia A. Fergus. The Power of Language. Equinox, 2006.

MLA (8th ed.) Citation

Young, Lynne, et al. The Power of Language. Equinox, 2006.