APA (7th ed.) Citation

Birks, P. (2005). Unjust enrichment (2nd ed.). University Press.

Chicago Style (17th ed.) Citation

Birks, Peter. Unjust Enrichment. 2nd ed. Oxford: University Press, 2005.

MLA (9th ed.) Citation

Birks, Peter. Unjust Enrichment. 2nd ed. University Press, 2005.