Milson, A. J., Altoff, P., Bockenhauer, M. H., Smith, J., Smith, M. W., Moore, D. W., . . . Haynes, C. (2015). World cultures and geography: GEO (Texas, [Middle school, student edition].). National Geographic Learning, Cengage Learning.
Chicago-Zitierstil (17. Ausg.)Milson, Andrew J., Peggy Altoff, Mark H. Bockenhauer, Janet Smith, Michael William Smith, David W. Moore, Merry Lobrecht, und Charles Haynes. World Cultures and Geography: GEO. Texas, [Middle school, student edition]. [Boston, MA]: National Geographic Learning, Cengage Learning, 2015.
MLA-Zitierstil (9. Ausg.)Milson, Andrew J., et al. World Cultures and Geography: GEO. Texas, [Middle school, student edition]. National Geographic Learning, Cengage Learning, 2015.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.