Allen, M. G., & Stevens, R. L. (1998). Middle grades social studies: Teaching and learning for active and responsible citizenship (2a. ed.). Allyn and Bacon.
Dyfyniad Arddull ChicagoAllen, Michael G., and Robert L. Stevens. Middle Grades Social Studies: Teaching and Learning for Active and Responsible Citizenship. 2a. ed. Boston: Allyn and Bacon, 1998.
Dyfyniad MLAAllen, Michael G., and Robert L. Stevens. Middle Grades Social Studies: Teaching and Learning for Active and Responsible Citizenship. 2a. ed. Allyn and Bacon, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.