Belgium
De Moor, G.; Ozer, A. (1985). Belgium, in: Bird, E.C.F. et al. The World's coastline. pp. 353-358
In: Bird, E.C.F.; Schwartz, M.L. (Ed.) (1985). The world's coastline. Van Nostrand Reinhold Company: New York. ISBN 0-442-21116-3. XIII, 1071 pp., meer
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