एपीए उद्धरण

ed by Rudiger Wolfrum & ed by Peter-Tobias Stoll and Clemens Feinaugle. (2008). WTO - Trade in Services. Martinus Nijhoff Publishers.

शिकागो स्टाइल उद्धरण

ed by Rudiger Wolfrum और ed by Peter-Tobias Stoll and Clemens Feinaugle. WTO - Trade in Services. Boston: Martinus Nijhoff Publishers, 2008.

एमएलए उद्धरण

ed by Rudiger Wolfrum और ed by Peter-Tobias Stoll and Clemens Feinaugle. WTO - Trade in Services. Martinus Nijhoff Publishers, 2008.