SpringerLink (Online service), Schippers, A., Glombitza, F., & Sand, W. (2014). Geobiotechnology II: Energy Resources, Subsurface Technologies, Organic Pollutants and Mining Legal Principles. Springer Berlin Heidelberg : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Axel Schippers, Franz Glombitza, και Wolfgang Sand. Geobiotechnology II: Energy Resources, Subsurface Technologies, Organic Pollutants and Mining Legal Principles. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2014.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Geobiotechnology II: Energy Resources, Subsurface Technologies, Organic Pollutants and Mining Legal Principles. Springer Berlin Heidelberg : Imprint: Springer, 2014.
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