APA-referens (7:e uppl.)
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-referens (17:e uppl.)
ebrary, Inc, och 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-referens (9:e uppl.)
ebrary, Inc, och Jonathan P. Caulkins. An Ounce of Prevention, a Pound of Uncertainty: The Cost-effectiveness of School-based Drug Prevention Programs. Rand, 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.