H J Winkels. (1997). Contaminant variability in a sedimentation area of the river Rhine. Wageningen: Wageningen Agricultural Univ.
Παραπομπή Chicago StyleH J Winkels. Contaminant Variability in a Sedimentation Area of the River Rhine. Wageningen: Wageningen Agricultural Univ, 1997.
Παραπομπή MLAH J Winkels. Contaminant Variability in a Sedimentation Area of the River Rhine. Wageningen: Wageningen Agricultural Univ, 1997.
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