John, T. (2013). Understanding c: The four education orientations framework. Sipringer.
Citazione stile Chigago Style (17a edizione)John, Tiffany. Understanding C: The Four Education Orientations Framework. New York: Sipringer, 2013.
Citatione MLA (9a ed.)John, Tiffany. Understanding C: The Four Education Orientations Framework. Sipringer, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.