Macmillan/McGraw-Hill School Publishing. (2003). Macmillan/McGraw-Hill Social Studies. People and places. Macmillan/McGraw-Hill.
Chicago-referens (17:e uppl.)Macmillan/McGraw-Hill School Publishing. Macmillan/McGraw-Hill Social Studies. People and Places. New York: Macmillan/McGraw-Hill, 2003.
MLA-referens (8:e uppl.)Macmillan/McGraw-Hill School Publishing. Macmillan/McGraw-Hill Social Studies. People and Places. Macmillan/McGraw-Hill, 2003.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.