ed by Rudiger Wolfrum & ed by Peter-Tobias Stoll and Clemens Feinaugle. (2008). WTO - Trade in Services. Martinus Nijhoff Publishers.
Čikaški stil citiranjaed by Rudiger Wolfrum i ed by Peter-Tobias Stoll and Clemens Feinaugle. WTO - Trade in Services. Boston: Martinus Nijhoff Publishers, 2008.
MLA način citiranjaed by Rudiger Wolfrum i ed by Peter-Tobias Stoll and Clemens Feinaugle. WTO - Trade in Services. Martinus Nijhoff Publishers, 2008.
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