Santrock, J. W. (2008). Life-span development (11th ed.). McGraw-Hill Higher Education.
Lua i Stíl Chicago (17ú heag.)Santrock, John W. Life-span Development. 11th ed. Boston, Mass: McGraw-Hill Higher Education, 2008.
Lua MLA (9ú heag.)Santrock, John W. Life-span Development. 11th ed. McGraw-Hill Higher Education, 2008.
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