Collier, P. (2003). Implications of Ethnic Diversity. Elsevier.
Lua i Stíl Chicago (17ú heag.)Collier, P. Implications of Ethnic Diversity. Elsevier, 2003.
Lua MLA (9ú heag.)Collier, P. Implications of Ethnic Diversity. Elsevier, 2003.
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