Cita APA (7th ed.)
Karoly, L. A., Kilburn, M. R., & Cannon, J. S. (2005). Early childhood interventions: Proven results, future promise. Rand.
Cita Chicago (17th ed.)
Karoly, Lynn A., M. Rebecca Kilburn, i Jill S. Cannon. Early Childhood Interventions: Proven Results, Future Promise. Santa Monica, CA: Rand, 2005.
Cita MLA (9th ed.)
Karoly, Lynn A., et al. Early Childhood Interventions: Proven Results, Future Promise. Rand, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.