1. The discovery of death in childhood and after.;Anthony,1973
2. Children's concept of how people get babies.;Bernstein;Child Development,1975
3. Piaget's theory of intelligence.;Brainerd,1978
4. The role of familiarity in children's explanations of physical causality.;Berzonsky;Child Development,1971
5. Genetic metaphysics: The developmental psychology of mind-body concepts.;Broughton,1980