American Academy of Orthodontics: Orthodontia; American Academy of Pedicatrics: Down Syndrome, Hospitalization, Hypertension, Jaundice, Pediatrician, Premature Birth, Safety; AP/Wide World: Maria Montessori; Archives of the History of American Psychology, University of Akron: Alfred Binet, James McKeen Cattell, Erik Erikson, Anna Freud, Arnold Gesell, Jean Piaget, Philippe Pinel, B. F. Skinner; Corel Corporation: Father-child relationships, Gross Motor Skills; EPD Photos: Autism, Drawings, Grandparents; Courtesy of Gallaudet University Press: American Sign Language; Courtesy of the Robert Glick family: Bar/Bat Mitzvah; Photo by Hornick/Rivlin, Courtesy of Addison-Wesley: T. Berry Brazelton; Photo by Peter LaFreniere, courtesy of photographer and Janice Zeman: Affect, Swimming.