Guerreo/Carta, KU# 1704X, The Effects of Acculturation, Demographics and Child-caregiver Interaction on Children's Early Language Development in Bilingual Environments, Contracts, 2000, Box: 38, Folder: 11. 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/453919 Accessed May 22, 2025.