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Lua i Stíl Chicago (17ú heag.)O'Connor, A. M. The Geography of Tropical African Development. Second Edition. ELSEVIER, 1978.
Lua MLA (8ú heag.)O'Connor, A. M. The Geography of Tropical African Development. Second Edition. ELSEVIER, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.