Cita APA (7a ed.)

Törber, G. (2015). The contractual nature of the optional clause. Hart Publishing.

Cita Chicago Style (17a ed.)

Törber, Gunnar. The Contractual Nature of the Optional Clause. Oxford: Hart Publishing, 2015.

Cita MLA (8a ed.)

Törber, Gunnar. The Contractual Nature of the Optional Clause. Hart Publishing, 2015.