APA (7th ed.) Citation

Grace, E., & Emen, L. (1978). Lily -- a longitudinal view of life with Down syndrome. Davidson Films, Inc..

Chicago Style (17th ed.) Citation

Grace, Elizabeth, and Lily Emen. Lily -- a Longitudinal View of Life with Down Syndrome. San Luis Obispo, CA: Davidson Films, Inc., 1978.

MLA (9th ed.) Citation

Grace, Elizabeth, and Lily Emen. Lily -- a Longitudinal View of Life with Down Syndrome. Davidson Films, Inc., 1978.