Kraepiel, A., Dere, A., Herndon, E., & Brantley, S. (2015). Natural and anthropogenic processes contributing to metal enrichment in surface soils of central Pennsylvania. Springer International Publishing. https://doi.org/10.1007/S10533-015-0068-5
Kraepiel, A, A Dere, Elizabeth Herndon, and Susan Brantley. 2015. “Natural and Anthropogenic Processes Contributing to Metal Enrichment in Surface Soils of Central Pennsylvania”. Springer International Publishing. https://doi.org/10.1007/S10533-015-0068-5.
Kraepiel, A., A. Dere, E. Herndon, and S. Brantley. Natural and Anthropogenic Processes Contributing to Metal Enrichment in Surface Soils of Central Pennsylvania. Springer International Publishing, 1 Mar. 2015, doi:10.1007/S10533-015-0068-5.