Carta, J., and J. Summers, Improving the Delivery of Early Intervention to Children with Disabilities from High Poverty Backgrounds, KU# 20900, Correspondence, 2000, Box: 10, Folder: 30. University of Kansas Schiefelbusch Institute for Life Span Studies records, RG 35. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/452461 Accessed May 23, 2025.