APA-viite (7. p.)
ebrary, Inc, & Caulkins, J. P. (1999). An ounce of prevention, a pound of uncertainty: The cost-effectiveness of school-based drug prevention programs. Rand.
Chicago-viite (17. p.)
ebrary, Inc, ja 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.
MLA-viite (9. p.)
ebrary, Inc, ja 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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