Johnston, L. D., Bachman, J. G., O'Malley, P. M., & Schulenberg, J. (1999). Monitoring the Future: A Continuing Study of American Youth (8th- and 10th-Grade Surveys), 1991. [Verlag nicht ermittelbar]. https://doi.org/10.3886/ICPSR02521.v2
Cita Chicago Style (17a ed.)Johnston, Lloyd D., Jerald G. Bachman, Patrick M. O'Malley, y John Schulenberg. Monitoring the Future: A Continuing Study of American Youth (8th- and 10th-Grade Surveys), 1991. [Erscheinungsort nicht ermittelbar]: [Verlag nicht ermittelbar], 1999. https://doi.org/10.3886/ICPSR02521.v2.
Cita MLA (9a ed.)Johnston, Lloyd D., et al. Monitoring the Future: A Continuing Study of American Youth (8th- and 10th-Grade Surveys), 1991. [Verlag nicht ermittelbar], 1999. https://doi.org/10.3886/ICPSR02521.v2.