Estimates of long-term mean-annual nutrient loads considered for use in SPARROW models of the Midcontinental region of Canada and the United States, 2002 base year
Saad, David A. dasaad@usgs.gov,Benoy, Glenn A.,Robertson, Dale M. dzrobert@usgs.gov. Estimates of long-term mean-annual nutrient loads considered for use in SPARROW models of the Midcontinental region of Canada and the United States, 2002 base year. 2018-01-01.