Lewis, W. A. (1967). Reflections on Nigeria's economic growth. Development Centre of the Organisation for Economic Cooperation and Development.
Παραπομπή σε μορφή Chicago (17η εκδ.)Lewis, W. Arthur. Reflections on Nigeria's Economic Growth. [Paris]: Development Centre of the Organisation for Economic Cooperation and Development, 1967.
Παραπομπή σε μορφή MLA (8th εκδ.)Lewis, W. Arthur. Reflections on Nigeria's Economic Growth. Development Centre of the Organisation for Economic Cooperation and Development, 1967.
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