The works cited on this extensively annotated bibliography represent approaches for understanding the language development of disadvantaged children. The subjects covered are bilingualism and dialectology, developmental influences (ethnic, family and home, instructional, and social and economic) and developmental status and processes (behavioral, intellectual, and language). The works report the progress of demonstration projects and the findings of comparative, descriptive ecological, and experimental studies. Some of the references are reviews of research, bibliographies, or conference proceedings. (EF)