Johnson, L. K. (2000). Bombs, bugs, drugs and thugs: intelligence and America's quest for security. New York and London: New York University Press.
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Adda, J. & Ottaviani, M. (2005). The transition to digital television. Economic Policy, 20, 159-209.
(Adda & Ottaviani, 2005)
Bornstein, M. H. & Lamb, M. E. (Eds.). (1999). Developmental psychology: an advanced textbook (4th ed.). [NetLibrary Reader version]. Retrieved from http://www.netlibrary.com/Reader/
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National Institute of Mental Health. (2001). Teenage brain: A work in progress. Retrieved from http://www.nimh.nih.gov/health/publications/teenage-brain-a-work-in-progress-factsheet/index.xhtml.
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