APA-čujuhus (7. p.)
Gray, V., Lowery, D., & Benz, J. K. (2013). Interest groups and health care reform across the United States. Georgetown University Press.
Chicago-čujuhus (17. p.)
Gray, Virginia, David Lowery, juo Jennifer K. Benz. Interest Groups and Health Care Reform Across the United States. Washington, D.C.: Georgetown University Press, 2013.
MLA-čujuhus (9. p.)
Gray, Virginia, et al. Interest Groups and Health Care Reform Across the United States. Georgetown University Press, 2013.
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