Cita APA (7a ed.)
Purkitt, H. E. African Environmental and Human Security in the 21st Century. Cambria.
Cita estilo Chicago (17a ed.)
Purkitt, Helen E. African Environmental and Human Security in the 21st Century. Buffalo, EUA: Cambria.
Cita MLA (9a ed.)
Purkitt, Helen E. African Environmental and Human Security in the 21st Century. Cambria.
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