Naumann, R. (2012). Social Studies skills: A workbook for homework and revision (1st edition.). Nelson, Cengage Learning.
Chicago-Zitierstil (17. Ausg.)Naumann, Ruth. Social Studies Skills: A Workbook for Homework and Revision. 1st edition. South Melbourne, Victoria Australia: Nelson, Cengage Learning, 2012.
MLA-Zitierstil (9. Ausg.)Naumann, Ruth. Social Studies Skills: A Workbook for Homework and Revision. 1st edition. Nelson, Cengage Learning, 2012.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.