Four topical bibliographies list materials held by the Illinois Birth to Three Clearinghouse which collects information of interest to parents, professionals, and policymakers on health, education, and development in infancy and early childhood. Bibliography number 18, "Materials on Home Care," contains 52 entries for books and journal articles dated 1978-1987. Bibliography number 19, "Material on Hearing Impairment and Deafness," contains 53 entries for books and journal articles dated 1970 and 1977-1987. Bibliography number 20, "Audiovisual Materials," contains 34 annotated entries for videotapes dated largely 1985-1987. The videotapes cover a wide range of subjects including pregnancy, normal infant development, premature infants, neonatal intensive care, toys, Medicaid, and families with handicapped children. Bibliography number 21, "Materials on Medical Genetics," contains 64 entries for books and journal articles dated 1977-1987. (VW)