APA (7th ed.) Citation

Beatson, J., Schrage, E. J. H., & Nicholas, B. (2003). Unjustified enrichment. Hart.

Chicago Style (17th ed.) Citation

Beatson, J., Eltjo J. H. Schrage, and Barry Nicholas. Unjustified Enrichment. Oxford [etc.]: Hart, 2003.

MLA (9th ed.) Citation

Beatson, J., et al. Unjustified Enrichment. Hart, 2003.