APA
WTO Secretariat,, . (2000). Guide to the GATS : An overview of issues for further liberalization of trade in services. London: Kluwer Law International.
Chicago
WTO Secretariat,, . 2000. Guide to the GATS : An overview of issues for further liberalization of trade in services. London: Kluwer Law International.
Harvard
WTO Secretariat,, . (2000). Guide to the GATS : An overview of issues for further liberalization of trade in services. London: Kluwer Law International.
MLA
WTO Secretariat,, . Guide to the GATS : An overview of issues for further liberalization of trade in services. London: Kluwer Law International. 2000.