Não informado. (1964). Ohio report on research and development. Agricultural Research and Development Center.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Ohio Report on Research and Development. Wooster, Ohio: Agricultural Research and Development Center, 1964.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Ohio Report on Research and Development. Agricultural Research and Development Center, 1964.
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