Gough, L. P., Severson, R. C., & Shacklette, H. T. (1988). Element concentrations in soils and other surficial materials of Alaska: An account of the concentrations of 43 chemical elements, ash, and pH in soil and other unconsolidated regolith samples. US Gov. Print. Off.
Chicago-Zitierstil (17. Ausg.)Gough, Larry P., Ronald C. Severson, und Hansford T. Shacklette. Element Concentrations in Soils and Other Surficial Materials of Alaska: An Account of the Concentrations of 43 Chemical Elements, Ash, and PH in Soil and Other Unconsolidated Regolith Samples. Washington: US Gov. Print. Off, 1988.
MLA-Zitierstil (9. Ausg.)Gough, Larry P., et al. Element Concentrations in Soils and Other Surficial Materials of Alaska: An Account of the Concentrations of 43 Chemical Elements, Ash, and PH in Soil and Other Unconsolidated Regolith Samples. US Gov. Print. Off, 1988.