Methodological approaches to the study of brain maturation and its abnormalities: summary report. Scientific editors: Dominick P. Purpura and Georgia Perkins Reaser. Technical editor: Anne H. Rosenfeld.
"A symposium held May 11-12, 1971, co-sponsored by the Rose F. Kennedy Center for Research in Mental Retardation and Human Development, Albert Einstein College of Medicine, Yeshiva University; and the Mental Retardation Program of the National Institute of Child Health and Human Development, National Institutes of Health."