Spears D. A. David Alan & Arbuzov S. I. Sergey Ivanovich. (2019). A geochemical and mineralogical update on two major tonsteins in the UK Carboniferous Coal Measures; International Journal of Coal Geology; Vol. 210. 2019. https://doi.org/10.1016/j.coal.2019.05.006
Цитирование в стиле Чикаго (17-е изд.)Spears D. A. David Alan и Arbuzov S. I. Sergey Ivanovich. A Geochemical and Mineralogical Update on Two Major Tonsteins in the UK Carboniferous Coal Measures; International Journal of Coal Geology; Vol. 210. 2019, 2019. https://doi.org/10.1016/j.coal.2019.05.006.
Цитирование MLA (9-е изд.)Spears D. A. David Alan и Arbuzov S. I. Sergey Ivanovich. A Geochemical and Mineralogical Update on Two Major Tonsteins in the UK Carboniferous Coal Measures; International Journal of Coal Geology; Vol. 210. 2019, 2019. https://doi.org/10.1016/j.coal.2019.05.006.