Dyfyniad APA
Tiess, G. (2011). General and International Mineral Policy: Focus: Europe. Springer Vienna. https://doi.org/10.1007/978-3-211-89005-9
Dyfyniad Arddull Chicago
Tiess, Gnter. General and International Mineral Policy: Focus: Europe. Vienna: Springer Vienna, 2011. https://doi.org/10.1007/978-3-211-89005-9.
Dyfyniad MLA
Tiess, Gnter. General and International Mineral Policy: Focus: Europe. Springer Vienna, 2011. https://doi.org/10.1007/978-3-211-89005-9.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.