00572nam 2200157z- 450 9910712347803321(CKB)5470000002492655(EXLCZ)99547000000249265520230509c2019uuuu -u- -engPoint-source nutrient loads to streams of the conterminous United States, 2012U.S. Department of the Interior, U.S. Geological SurveyReston, VirginiaBOOK9910712347803321Point-source nutrient loads to streams of the conterminous United States, 20123283092UNINA