1. Early childhood education: An international perspective;Austin,1976
2. Habitats, environments, and human behavior: Studies in ecological psychology and eco-behavioral science;Barker,1978
3. Big school, small school,1964
4. Criteria for use in describing facial expressions of children;Blurton-Jones;Human Biology,1971
5. Characteristics of ethological studies of human behaviour;Blurton-Jones,1972