The bibliography contains 150 annotated citations of research articles on individuals with mental retardation who were studied in relation to their physical activity settings. Citations provide information on the title, author, journal or related document in which the article appears, and the content or focus of the article. Citations are indexed in the following categories, all related specifically to mental retardation: autism, adapted physical education, camping, Down's Syndrome, integration or mainstreaming, leisure education, motor development and skill acquisition, motor evaluation, motor performance, multiple disabilities, physical activity, physical education, physical fitness, play, psychological factors, recreation, self-concept and self-esteem, Special Olympics, sport, and teaching techniques. Appended materials include an order form for articles, an abstract submission form, and an order form for copies of the publication itself. (MSE)