This book consists of the 29 papers presented at the Conference on Child Language co-sponsored by the Center for Applied Linguistics and the American Council on the Teaching of Foreign Languages in Chicago in November of 1971. The subject of the conference was restricted to the learning of two or more languages or dialects by young children, especially between the ages of three and eight, with particular attention to the social setting. The volume is divided into the following eight sections: (1) Theory and Method; (2) Early Language Learning; (3) Family Bilingualism; (4) Bilingualism and Society; (5) Planning Preschool Language Learning; (6) Planning the Primary Curriculum; (7) Case Studies of School Bilingualism; and (8) Policy and Research. (CFM)