Bibliotecas de Economía y Administración ·
Catálogo
UNIVERSIDAD NACIONAL DEL SUR |
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Naciones unidas. Department of economic and social affairs. | ||||
1. | Survey of world iron ore resources : occurrence, appraisal and use. | 1955 |
333.339
N117 |
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2. | Yearbook of international trade statistics, 1968. | 1970 |
382.09
N117 |