Allen, M. G., & Stevens, R. L. (1998). Middle grades social studies: Teaching and learning for active and responsible citizenship (2a. ed.). Allyn and Bacon.
Цитирование в стиле Чикаго (17-е изд.)Allen, Michael G., и Robert L. Stevens. Middle Grades Social Studies: Teaching and Learning for Active and Responsible Citizenship. 2a. ed. Boston: Allyn and Bacon, 1998.
Цитирование MLA (9-е изд.)Allen, Michael G., и Robert L. Stevens. Middle Grades Social Studies: Teaching and Learning for Active and Responsible Citizenship. 2a. ed. Allyn and Bacon, 1998.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.