WagnerNJ2021
Wagner, N. J. 2021. Geology of Coal. Teoksessa: Alderton, D. & Elias, S. C. (toim.), Encyclopedia of Geology (Second Edition), 745–761. https://doi.org/10.1016/B978-0-12-409548-9.12534-5
Wagner, N. J. 2021. Geology of Coal. Teoksessa: Alderton, D. & Elias, S. C. (toim.), Encyclopedia of Geology (Second Edition), 745–761. https://doi.org/10.1016/B978-0-12-409548-9.12534-5