Smith, D.B., Woodruff, L.G., O’Leary, R.M., Cannon, W.F., Garrett, R.G., Kilburn, J.E., Goldhaber, M.B. (2009). Pilot studies for the North American Soil Geochemical Landscapes Project – Site selection, sampling protocols, analytical methods, and quality control protocols. In Geochemical studies of North American soils: results from the pilot study phase of the North American Soil Geochemical Landscapes Project, D.B. Smith (ed.). Applied Geochemistry, Volume 24, Issue 8, p. 1357-1368.
Soil sampling pilot study, Canadian component, Manitoba and North Dakota, 2004. (more)
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