1232
tulemust jaotises
Teema
Saastamine
Saastamine
Introduction of contaminants into the natural environment that cause adverse change
National Heritage Institute, Bucharest
Δ. Μπαμπαλώνας
Greek Biotope - Wetland Center
Halla, Anja
Finnish Heritage Agency
Lucreția MĂNESCU
National Heritage Institute, Bucharest
Koch, Eric / Anefo
National Archives of the Netherlands
Rijksvoorlichtingsdienst (RVD)
National Archives of the Netherlands
Rijksvoorlichtingsdienst (RVD)
National Archives of the Netherlands
Rijksvoorlichtingsdienst (RVD)
National Archives of the Netherlands
Hofland, K. / RVD
National Archives of the Netherlands
Loeffen, Ger
Regional Archive Nijmegen
Loeffen, Ger
Regional Archive Nijmegen
Loeffen, Ger
Regional Archive Nijmegen
Loeffen, Ger
Regional Archive Nijmegen
Loeffen, Ger
Regional Archive Nijmegen
Loeffen, Ger
Regional Archive Nijmegen
Loeffen, Ger
Regional Archive Nijmegen
Loeffen, Ger
Regional Archive Nijmegen
Müller, Simone
GESIS - Leibniz Institute for the Social Sciences. Library Cologne
Schröder, Helmut
GESIS - Leibniz Institute for the Social Sciences. Library Cologne