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

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

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