ebrary, Inc, & Caulkins, J. P. (1999). An ounce of prevention, a pound of uncertainty: The cost-effectiveness of school-based drug prevention programs. Rand.
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Cita Chicago Style (17a ed.)
ebrary, Inc, y Jonathan P. Caulkins. An Ounce of Prevention, a Pound of Uncertainty: The Cost-effectiveness of School-based Drug Prevention Programs. Santa Monica, CA: Rand, 1999.
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Cita MLA (9a ed.)
ebrary, Inc, y Jonathan P. Caulkins. An Ounce of Prevention, a Pound of Uncertainty: The Cost-effectiveness of School-based Drug Prevention Programs. Rand, 1999.
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