University of Minnesota. Institute of Child Development, ebrary, Inc, Hill, J. P., Pick, A. D., & Collins, W. A. (1973). Minnesota Symposia on Child Psychology: [papers of the annual symposia, 1966-1977, i.e. 1976]. Vol. 7. University of Minnesota Press.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)University of Minnesota. Institute of Child Development, Inc ebrary, John P. Hill, Anne D. Pick, và W. Andrew Collins. Minnesota Symposia on Child Psychology: [papers of the Annual Symposia, 1966-1977, I.e. 1976]. Vol. 7. Minneapolis [Minn.]: University of Minnesota Press, 1973.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)University of Minnesota. Institute of Child Development, et al. Minnesota Symposia on Child Psychology: [papers of the Annual Symposia, 1966-1977, I.e. 1976]. Vol. 7. University of Minnesota Press, 1973.