Cita APA (7a ed.)

Passerin d'Entrèves, A. (1965). Natural law: An historical survey. Harper & Row.

Cita Chicago Style (17a ed.)

Passerin d'Entrèves, Alessandro. Natural Law: An Historical Survey. New York: Harper & Row, 1965.

Cita MLA (9a ed.)

Passerin d'Entrèves, Alessandro. Natural Law: An Historical Survey. Harper & Row, 1965.