Front cover image for Attachment and reciprocity in the two-year-old child : research report

Attachment and reciprocity in the two-year-old child : research report

Print Book, English, [1970]
National Laboratory on Early Childhood Education, [United States], [1970]
84 leaves : illustrations ; 28 cm
80564043
"A paper submitted in partial fulfillment of the requirements for the Master's Degree, The University of Chicago."
At head of title: Document Number 70706-G-A0-R-37. Printed April, 1970
"The research or work reported herein was performed pursuant to a contract with the Office of Education, U.S. Department of Health, Education, and Welfare through the Chicago Early Education Research Center, a component of the National Laboratory on Early Childhood Education, contract OEC-3-7-070706-3118."