WELTON, D. A., & MALLAN, J. T. (1988). Children and their world: Strategies for teaching soci-al studies.-- Ed.3. Houghton Mifflin Co.
Chicago-viite (17. p.)WELTON, David A., ja John T. MALLAN. Children and Their World: Strategies for Teaching Soci-al Studies.-- Ed.3. Boston: Houghton Mifflin Co, 1988.
MLA-viite (9. p.)WELTON, David A., ja John T. MALLAN. Children and Their World: Strategies for Teaching Soci-al Studies.-- Ed.3. Houghton Mifflin Co, 1988.
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