APA (7th ed.) Citation

Collier, P., Hoeffler, A., & Sandler, T. (2007). Civil War. Elsevier.

Chicago Style (17th ed.) Citation

Collier, P., A. Hoeffler, and T. Sandler. Civil War. Elsevier, 2007.

MLA (9th ed.) Citation

Collier, P., et al. Civil War. Elsevier, 2007.