Citação norma APA
National Research Council (U.S.), ebrary, Inc, & Koenig, J. A. (2011). Assessing 21st century skills: Summary of a workshop. National Academies Press.
Citação norma Chicago
National Research Council (U.S.), Inc ebrary, and Judith Anderson Koenig. Assessing 21st Century Skills: Summary of a Workshop. Washington, D.C.: National Academies Press, 2011.
Citação norma MLA
National Research Council (U.S.), et al. Assessing 21st Century Skills: Summary of a Workshop. National Academies Press, 2011.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.