TY - JOUR A1 - Rheingold, H. L. A1 - Gewirtz, J. L. A1 - Ross, H. W. T1 - Social Conditioning of Vocalizations in the Infant JF - Journal of Comparative and Physiological Psychology, Vol. 52 (1959), pp. 68-73. Y1 - 1959 N1 - Ex libris Marco Bacciagaluppi ER -