WELTON, D. A., & MALLAN, J. T. (1988). Children and their world: Strategies for teaching soci-al studies.-- Ed.3. Houghton Mifflin Co.
Dyfyniad Arddull ChicagoWELTON, David A., and John T. MALLAN. Children and Their World: Strategies for Teaching Soci-al Studies.-- Ed.3. Boston: Houghton Mifflin Co, 1988.
Dyfyniad MLAWELTON, David A., and John T. MALLAN. Children and Their World: Strategies for Teaching Soci-al Studies.-- Ed.3. Houghton Mifflin Co, 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.