Demeter, S. E. (2019). 500 AP U.S. history questions to know by test day (Third edition.). McGraw-Hill Education.
Lua i Stíl Chicago (17ú heag.)Demeter, Scott E. 500 AP U.S. History Questions to Know by Test Day. Third edition. New York: McGraw-Hill Education, 2019.
Lua MLA (9ú heag.)Demeter, Scott E. 500 AP U.S. History Questions to Know by Test Day. Third edition. McGraw-Hill Education, 2019.
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