Cita APA (7th ed.)
ebrary, Inc, Wolfrum, R., Stoll, P., & Feinäugle, C. (2008). WTO--trade in services. Martinus Nijhoff Publishers.
Cita Chicago (17th ed.)
ebrary, Inc, Rüdiger Wolfrum, Peter-Tobias Stoll, i Clemens Feinäugle. WTO--trade in Services. Leiden ; Boston: Martinus Nijhoff Publishers, 2008.
Cita MLA (9th ed.)
ebrary, Inc, et al. WTO--trade in Services. Martinus Nijhoff Publishers, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.