Παραπομπή σε μορφή APA (7η εκδ.)

ebrary, Inc, & Ritter, F. E. (2007). In order to learn: How the sequence of topics influences learning. Oxford University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

ebrary, Inc, και Frank E. Ritter. In Order to Learn: How the Sequence of Topics Influences Learning. Oxford ; New York: Oxford University Press, 2007.

Παραπομπή σε μορφή MLA (9th εκδ.)

ebrary, Inc, και Frank E. Ritter. In Order to Learn: How the Sequence of Topics Influences Learning. Oxford University Press, 2007.