Gutierrez-Smith, P. (1987). History and life: The world and its people (3rd edition.). Scott, Foresman.
Chicago-Zitierstil (17. Ausg.)Gutierrez-Smith, Patricia. History and Life: The World and Its People. 3rd edition. Glenview, Ill. [u.a.]: Scott, Foresman, 1987.
MLA-Zitierstil (9. Ausg.)Gutierrez-Smith, Patricia. History and Life: The World and Its People. 3rd edition. Scott, Foresman, 1987.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.