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Meeresbergbau auf Kobalt, Kupfer, Mangan und Nickel : Bedarfsdeckung, Betriebskosten, Wirtschaftlichkeit
Dorstewitz, Günter, (1971)
Potential fiscal impacts of manganese nodule processing in the Puna and Kohala districts of Hawaii
Blood, Dwight M., (1984)
Manganese nodule distribution, mineralogy and geochemistry and relation to sediment type in the Aitutaki Passage, South-West Pacific
Glasby, G. P., (1983)
Holes in the walls : University adult education
Jones, H. A., (1972)
Inbreeding and Heterosis and Their Relation to the Develpment of New Varieties of Onions
Jones, H. A., (1944)
Inbreeding and Heterosis and Their Relation to the Development of New Varieties of Onions