Zeman, A. (2005). Everything You Need to Know About Geography Homework. Scholastic.
Chicago-referens (17:e uppl.)Zeman, Anne. Everything You Need to Know About Geography Homework. Scholastic, 2005.
MLA-referens (8:e uppl.)Zeman, Anne. Everything You Need to Know About Geography Homework. Scholastic, 2005.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.