Παραπομπή APA

Ekwall, E. E., & Shanker, J. L. (1993). Locating and correcting reading difficulties.

Παραπομπή Chicago Style

Ekwall, Eldon E., και James L. Shanker. Locating and Correcting Reading Difficulties. New Jersey, Prentice Hall, 1993.

Παραπομπή MLA

Ekwall, Eldon E., και James L. Shanker. Locating and Correcting Reading Difficulties. 1993.