Ringqvist, L. (2000). Peat as a metal trap for wastewater. Swedish University of Agricultural Sciences.
Dyfyniad Arddull ChicagoRingqvist, Lena. Peat as a Metal Trap for Wastewater. Umeå: Swedish University of Agricultural Sciences, 2000.
Dyfyniad MLARingqvist, Lena. Peat as a Metal Trap for Wastewater. Swedish University of Agricultural Sciences, 2000.
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