SCHWARTZ, M. A. (2003). Marriages and families: Diversity and change. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)SCHWARTZ, Mary Ann. Marriages and Families: Diversity and Change. Prentice Hall, 2003.
Lua MLA (9ú heag.)SCHWARTZ, Mary Ann. Marriages and Families: Diversity and Change. Prentice Hall, 2003.
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