TY - RPRT TI - Preliminary results of the North American Soil Geochemical Landscapes Project, northeast United States and Maritime Provinces of Canada AU - Eric C. Grunsky AU - David B. Smith AU - Peter W.B. Friske AU - Laurel G. Woodruff PY - 2009 UR - https://pubs.usgs.gov/publication/70046624 ID - 70046624 ER -