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III International Congress, International Association of Engineering Geology, Madrid, Spain, 4-8 September, 1978: Regional planning. 2 v
International Association of Engineering Geology
出版III Congreso Internacional de Geología del Ingeniero, Servicio Geológico de O.P., 1978
URLhttp://books.google.com.hk/books?id=GEMSAQAAMAAJ&hl=&source=gbs_api