Belgium
Bourdeau, P.F. (1981). Belgium, in: Kormondy, E.J. et al. (Ed.) Handbook of contemporary developments in world ecology. pp. 119-125
In: Kormondy, E.J.; McCormick, J.F. (Ed.) (1981). Handbook of contemporary developments in world ecology. Greenwood Press: Westport. ISBN 0-3-132-1381-X. 776 pp., more
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