Cropley, A. J., Urban, K. K., Wagner, H., & Wieczerkowski, W. (1986). Giftedness: Giftedness : the proceedings of the 6th world conference on gifted and talented children : a continuing worldwide challenge. Monroe, N.Y: Trillium Press for World Council for Gifted and Talented Children.
Chicago stil citiranjaCropley, Arthur J., Klaus K. Urban, Harald Wagner, and Wilhelm Wieczerkowski. Giftedness: Giftedness : the proceedings of the 6th world conference on gifted and talented children : a continuing worldwide challenge. Monroe, N.Y: Trillium Press for World Council for Gifted and Talented Children, 1986.
MLA stil citiranjaCropley, Arthur J., Klaus K. Urban, Harald Wagner, and Wilhelm Wieczerkowski. Giftedness: Giftedness : the proceedings of the 6th world conference on gifted and talented children : a continuing worldwide challenge. Monroe, N.Y: Trillium Press for World Council for Gifted and Talented Children, 1986.