Snijders, T., Van der Gaag, M., Flap, H., & Erickson, N. L. a. B. (2008). Position generator measures and their relationship to other Social Capital measures. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Snijders, T., M. Van der Gaag, H. Flap, agus Nan Lin and Bonnie Erickson. Position Generator Measures and Their Relationship to Other Social Capital Measures. Oxford University Press, 2008.
Lua MLA (9ú heag.)Snijders, T., et al. Position Generator Measures and Their Relationship to Other Social Capital Measures. Oxford University Press, 2008.
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