Schmidt, L. A., & Schulkin, J. (1999). Extreme fear, shyness, and social phobia: Origins, biological mechanisms, and clinical outcomes. Oxford University Press.
Chicago Style (17. basım) AtıfSchmidt, Louis A., ve Jay Schulkin. Extreme Fear, Shyness, and Social Phobia: Origins, Biological Mechanisms, and Clinical Outcomes. New York: Oxford University Press, 1999.
MLA (9th ed.) AtıfSchmidt, Louis A., ve Jay Schulkin. Extreme Fear, Shyness, and Social Phobia: Origins, Biological Mechanisms, and Clinical Outcomes. Oxford University Press, 1999.
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