History and Progress of the North American Soil Geochemical Landscapes Project, 2001-2010
David B.Smith, William F.Cannon, Laurel G.Woodruff, Francisco Moreira Rivera Andrew N.Rencz, Robert G.Garrett
aUS Geological Survey, MS 973, Denver, CO 80225, USA bUS Geological Survey, MS 954, Reston, VA 20192, USA cUS Geological Survey, 2280 Woodale Drive, St. Paul, MN 55112, USA dServicio Geológico Mexicano, 78280 San Luis Potosí, S.L.P., Mexico eGeological Survey of Canada, Natural Resources Canada, 601 Booth St., Ottawa, ON, Canada, K1A 0E8
David B.Smith, William F.Cannon, Laurel G.Woodruff, et al.. History and Progress of the North American Soil Geochemical Landscapes Project, 2001-2010[J]. Earth Science Frontiers, 2012, 19(3): 19-32.