1. Language acquisition: The child's spontaneous descriptions of events in time;Clark,1969
2. How young children describe events in time;Clark,1970
3. The primitive nature of children's relational concepts;Clark,1970
4. Less is more: A study of language comprehension in children;Donaldson;British Journal of Psychology,1968
5. On the acquisition of some relational terms;Donaldson,1970