Bird mortality in the Netherlands in the spring of 1960, due to the use of pesticides in agriculture (summary of a report in Dutch)
Mörzer Bruijns, M.F. (1963). Bird mortality in the Netherlands in the spring of 1960, due to the use of pesticides in agriculture (summary of a report in Dutch). Bull. Int. Counc. Bird Preserv. IX: 70-75
In: Bulletin of the International Council for Bird Preservation. International Council for Bird Preservation: London. ISSN 1018-8460, meer
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