Citazione Stile APA (7a Edizione)

Schrage, E. J. H. (1999). Unjust enrichment: The comparative legal history of the law of restitution (2a. ed.). Duncker & Humblot.

Citazione stile Chigago Style (17a edizione)

Schrage, Eltjo J. H. Unjust Enrichment: The Comparative Legal History of the Law of Restitution. 2a. ed. Berlín: Duncker & Humblot, 1999.

Citatione MLA (9a ed.)

Schrage, Eltjo J. H. Unjust Enrichment: The Comparative Legal History of the Law of Restitution. 2a. ed. Duncker & Humblot, 1999.