APA (7th ed.) Citation

Farrell, M., Fella, S., & Newman, M. (2002). European integration in the 21st century: Unity in diversity? SAGE Publications.

Chicago Style (17th ed.) Citation

Farrell, Mary, Stefano Fella, and Michael Newman. European Integration in the 21st Century: Unity in Diversity? London ; Thousand Oaks, Calif.: SAGE Publications, 2002.

MLA (9th ed.) Citation

Farrell, Mary, et al. European Integration in the 21st Century: Unity in Diversity? SAGE Publications, 2002.