एपीए उद्धरण

(2008). WTO--trade in services. Martinus Nijhoff Publishers.

शिकागो स्टाइल उद्धरण

WTO--trade in Services. Leiden: Martinus Nijhoff Publishers, 2008.

एमएलए उद्धरण

WTO--trade in Services. Martinus Nijhoff Publishers, 2008.