Ethiopia, Mapping and Geography Institute. "June 1960." Relief shown by contours and spot heights. Blue line print. Indexed for peaks with spot heights. Imperial Ethiopian Mapping & Geography Institute.
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Brazil, Inspectoria Federal de Obras contra as Seccas. organizado pelo enjenheiro Roberto Miller ... sob a direção do chefe topógrafo Guilherme Lane. Legend. Relief shown by shading and spot heights. Co... Ministério da Viação e Obras Públicas, Inspectoria de Obras contra as Seccas.