Janis, Mark W.
An introduction to international law
Little, Brown , 1993
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Starke, J.G.
An introduction to international law
Butterworth , 1958
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Lewis, Merlin
An Introduction to international law
Prentice-Hall, 1978
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Starke, J.G.
An introduction to international law
Butterworth, 1977
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Klabbers, Jan
An introduction to international institutional law
Cambridge University Press, 2009
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