Key points are not available for this paper at this time.
Bernice A. Pescosolido, Elizabeth Grauerholz, Melissa A. Milkie, Culture and Conflict: The Portrayal of Blacks in U.S. Children's Picture Books Through the Mid- and Late-Twentieth Century, American Sociological Review, Vol. 62, No. 3 (Jun., 1997), pp. 443-464
Pescosolido et al. (Sun,) studied this question.