Unite for Literacy (Firm), 106 Infobase, 54 Hartman, Holly, 1952- 50 United States. National Park Service, 29 Junior Ranger Program (United States. National Park Service) 27 BBC (Firm) 20 MacNeil/Lehrer Productions 19 United States. National Park Service 19 EBSCOhost 14 United States. Natural Resources Conservation Service, 13 Cress, Zaiga, 12 SpringerLink (Online service) 12 United States. Environmental Protection Agency. Office of Solid Waste and Emergency Response 12 United States. Forest Service 12 United States. National Oceanic and Atmospheric Administration 12 Centers for Disease Control and Prevention (U.S.), 11 United States. Department of Education 11 United States. Environmental Protection Agency. Office of Air and Radiation 11 Terrazas, April Chloe, 10 United States. Bureau of Land Management, 10 United States. Food and Nutrition Service, 10 Verdick, Elizabeth 10 Clyde, Jean Anne, 9 McGuffee, Phoebe, 1959- 9 Ollikainen, Nina, 9 United States. National Aeronautics and Space Administration 9 Wildlife Services (U.S.) 9 Freedman, Russell, 1929-2018 8 National Geographic Society (U.S.). Special Publications Division 8 Native Diabetes Wellness Program (U.S.), 8 Rolo, Patrick, 8 U.S. Fish and Wildlife Service 8 United States. Farm Service Agency, 8 D'Aulaire, Ingri, 1904-1980 7 Locke, Leona, 7 McKissack, Pat, 1944-2017 7 Perez, Georgia, 7 University of Virginia. Library. Electronic Text Center 7 American Council for Drug Education 6 Colker, Laura J. 6 DePaola, Tomie, 1934- 6 Fromm, Megan, 6 Jenkins, Steve, 1952- 6 Martinez, Racheal, 6 McGuffee, Michael, 6 National Geographic Society (U.S.) 6 Pinkney, J. Brian, 6 Sweet, Melissa, 1956- 6 Team Nutrition (Program : U.S.) 6 United States. Environmental Protection Agency 6 Aliki 5 Bloom, Harold 5 Ciné Fête 5 Cole, Joanna 5 Geological Survey (U.S.) 5 Grimm, Wilhelm, 1786-1859 5 Heinlen, Marieka, 5 Johnson, Gerald W. 1890-1980 5 Juvenile Collection (Library of Congress) 5 Maloy, Molly, 5 Marrin, Albert 5 McKissack, Fredrick 5 Nelson, Kadir, 5 Pinkney, Andrea Davis 5 Prelutsky, Jack 5 Sagamore Hill National Historic Site (Agency : U.S.), 5 Tehon, Atha, 5 United States. Federal Emergency Management Agency 5 United States. National Weather Service 5 Wildsmith, Brian 5 Zitkala-Sä, 1876-1938 5 Adoff, Arnold 4 Aesop 4 Bremer, Bill, 1949- 4 Christie, R. Gregory, 1971- 4 Collier, Bryan, 4 D'Aulaire, Edgar Parin, 1898-1986 4 Fifield, Lisa, 4 Films Incorporated 4 Galdone, Paul 4 Greenaway, Kate, 1846-1901 4 Grimm, Jacob, 1785-1863 4 Heinlen, Marieka 4 Kerley, Barbara 4 López, Rafael, 1961- 4 Macaulay, David 4 Meltzer, Milton, 1915-2009 4 Miller, Debra A. 4 National Institute of Environmental Health Sciences 4 Pinkney, Jerry, 4 Pringle, Laurence, 1935- 4 ProQuest (Firm) 4 Smith, Duane A. 4 South China Printing Co., 4 Time-Life Books 4 Tonatiuh, Duncan, 4 United States. Forest Service, 4 United States. Natural Resources Conservation Service 4 Weatherford, Carole Boston, 1956- 4 White House Historical Association 4