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Papers submitted to the Conference : university of Alexandria
(1973)
Mean and Bold?
Witte, Kristof De, (2007)
New aspects of mineral and water resources in the Netherlands : [a symposium entitled "Enkele nieuwe aspecten van delfstoffen in Nederland", The Hague on March 18th, 1972]
Sijp, J. W. C. M. van der, (1973)