SpringerLink (Online service), Zinck, J. A., & Huber, O. (2011). Peatlands of the Western Guayana Highlands, Venezuela: Properties and Paleogeographic Significance of Peats. Springer Berlin Heidelberg : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Joseph Alfred Zinck, και Otto Huber. Peatlands of the Western Guayana Highlands, Venezuela: Properties and Paleogeographic Significance of Peats. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2011.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Peatlands of the Western Guayana Highlands, Venezuela: Properties and Paleogeographic Significance of Peats. Springer Berlin Heidelberg : Imprint: Springer, 2011.
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