Petruk, W. (1998). Waste characterization and treatment. Littleton, CO.: Society for Mining, Metallurgy, and Exploration.
Παραπομπή Chicago StylePetruk, W. Waste Characterization and Treatment. Littleton, CO.: Society for Mining, Metallurgy, and Exploration, 1998.
Παραπομπή MLAPetruk, W. Waste Characterization and Treatment. Littleton, CO.: Society for Mining, Metallurgy, and Exploration, 1998.
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