1. Donald W Robinson, “Ferment in the Social Studies,” SE 27, no. 7 (November 1963): 360–364, 410.
2. James M. Becker, “Prospect for Change in the Social Studies,” SE 29, no. 1 (January 1965): 20–22.
3. Lewis Paul Todd, “The Seamless Web,” SE 27, no. 4 (April 1963): 181, 204.
4. Shirley H. Engle, “Decision Making: The Heart of Social Studies Instruction,” SE 24, no. 7 (November 1960): 301–306.
5. Shirley H. Engle, “Thoughts in Regard to Revision,” SE 27, no. 4 (April, 1963): 182.