Lahey, B. B., & Landrum, R. E. (2004). Practice tests for use with Psychology: An introduction (8th ed.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Lahey, Benjamin B., agus R. Eric Landrum. Practice Tests for Use with Psychology: An Introduction. 8th ed. Boston, Mass.: McGraw-Hill, 2004.
Lua MLA (8ú heag.)Lahey, Benjamin B., agus R. Eric Landrum. Practice Tests for Use with Psychology: An Introduction. 8th ed. McGraw-Hill, 2004.
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