Knapp, U. (1996). International trade in professional services. Assessing barriers and encouraging reform: 2nd workshop, 16 - 17 Oct. 1995 ([1st ed.].). OECD.
Citácia podle Chicago (17th ed.)Knapp, Ursula. International Trade in Professional Services. Assessing Barriers and Encouraging Reform: 2nd Workshop, 16 - 17 Oct. 1995. [1st ed.]. Paris: OECD, 1996.
Citácia podľa MLA (8th ed.)Knapp, Ursula. International Trade in Professional Services. Assessing Barriers and Encouraging Reform: 2nd Workshop, 16 - 17 Oct. 1995. [1st ed.]. OECD, 1996.
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