Guffey, S. K., Slater, S. J., Schleigh, S. p, Slater, T. F. and Heyer, I. (2016) “Surveying Geology Concepts In Education Standards For A Rapidly Changing Global Context”, Contemporary Issues in Education Research (CIER), 9(4), pp. 167–188. doi: 10.19030/cier.v9i4.9788.