Cita APA (7a ed.)

Spoth, R. L. (2002). Longitudinal substance initiation outcomes for a universal preventive intervention combining family and school programs. [s.n.].

Cita Chicago Style (17a ed.)

Spoth, Richard L. Longitudinal Substance Initiation Outcomes for a Universal Preventive Intervention Combining Family and School Programs. [S.l.]: [s.n.], 2002.

Cita MLA (9a ed.)

Spoth, Richard L. Longitudinal Substance Initiation Outcomes for a Universal Preventive Intervention Combining Family and School Programs. [s.n.], 2002.