Schweinhart, L. J., Barnes, H. V., & Weikart, D. P. (1993). Significant benefits: The High Scope Perry Preschool study through age 27. Monographs of the High/Scope Educational Research Foundation.
Chicago-Zitierstil (17. Ausg.)Schweinhart, Lawrence J., Helen V. Barnes, und David P. Weikart. "Significant Benefits: The High Scope Perry Preschool Study Through Age 27." Monographs of the High/Scope Educational Research Foundation 1993.
MLA-Zitierstil (9. Ausg.)Schweinhart, Lawrence J., et al. "Significant Benefits: The High Scope Perry Preschool Study Through Age 27." Monographs of the High/Scope Educational Research Foundation, 1993.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.