Guerreo/Carta, KU# 17042, The Effects of Acculturation, Demographics and Child-caregiver Interaction on Children's Early Language Development in Bilingual Environments, August 1, 1999, Box: 38, Folder: 10. 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/453918 Accessed July 12, 2025.