Joseph E. Trimble, PhD, J. King, J. Beals and S. Manson. "A Structural Equation Model of Factors Related to Substance Abuse among American Indian Adolescents" Drugs and Society Vol. 6 Iss. 3/4 (1993) p. 253 - 268
Available at: http://works.bepress.com/joseph_trimble/70/