8Wellman, Barry 1979, " The Community Question: The intimate Networks of East Yorkers." American Journal of Sociology 84.
9Wellman, Barry 1982, "Studying Personal Communities." in Social Structure and Network Analysis, (eds.) by Peter V. Marsden & Nan Lin,Beverly Hills, CA: Sage.
10Wellman, Barry 1988, "Structural Analysis: from Method and Metaphor to Theory and Substance." in Social Structures: A Network Approach,(eds.) by Barry Wellman & S. D. Berkowitz, Cambridge: Cambridge University Press.