Litwin, H., & Shiovitz-Ezra, S. (2011). Social Network Type and Subjective Well-being in a National Sample of Older Americans. Oxford University Press.
Chicago-tyylinen lähdeviittausLitwin, Howard, ja Sharon Shiovitz-Ezra. Social Network Type and Subjective Well-being in a National Sample of Older Americans. Oxford University Press, 2011.
MLA-viiteLitwin, Howard, ja Sharon Shiovitz-Ezra. Social Network Type and Subjective Well-being in a National Sample of Older Americans. Oxford University Press, 2011.
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