Lewis, D. S., & Slater, W. (2009). The annual register: World events 2008 (250th ed.). ProQuest.
Lua i Stíl Chicago (17ú heag.)Lewis, D. S., agus Wendy Slater. The Annual Register: World Events 2008. 250th ed. Bethesda, Md: ProQuest, 2009.
Lua MLA (9ú heag.)Lewis, D. S., agus Wendy Slater. The Annual Register: World Events 2008. 250th ed. ProQuest, 2009.
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