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Lua i Stíl Chicago (17ú heag.)Revelle, Roger. Possibilities for Agricultural Development in Lake Chad. [s.l.: s.n.], 1974.
Lua MLA (8ú heag.)Revelle, Roger. Possibilities for Agricultural Development in Lake Chad. s.n.], 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.