1. Language and Context: The Acquisition of Pragmatics. New York: Academic Press, 1976.
2. The Development of the Concept of Object as Related to Infant-Mother Attachment
3. Place versus response as the basis of spatial errors made by young infants
4. and “Peek-a-Boo and the Learning of Rule Structures.” In , and (Eds.), Play–Its Role in Development and Evolution. New York: Basic Books, 1976.
5. and “Infant Visual Memory.” In and (Eds.), Infant Perception: From Sensation to Cognition. Vol. 1: Basic Visual Processes. New York: Academic Press, 1975.