@article{Kleeman, author = {Kleeman, James A.}, title = {The Peek-A-Boo Game. Part I: Its Origins, Meanings, and Related Phenomena in the First Year}, series = {The Psychoanalytic Study of the Child, Yale University Press, Vol. 22 (1967), pp. 239-273.}, journal = {The Psychoanalytic Study of the Child, Yale University Press, Vol. 22 (1967), pp. 239-273.}, language = {en} }