Nutrients in the North Sea
Brockmann, U.H. (1988). Nutrients in the North Sea, in: Newman, P.J. et al. (Ed.) Environmental protection of the North Sea: International technical conference, London, 24-27 March 1987. pp. 759-765
In: Newman, P.J.; Agg, A.R. (Ed.) (1988). Environmental protection of the North Sea: International technical conference, London, 24-27 March 1987. Heinemann Professional Publishing: Oxford. ISBN 0-434-91370-7. xxviii, 886 pp., meer
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