Παραπομπή σε μορφή APA (7η εκδ.)

Pennington, M. C., & Hoekje, B. J. (2010). Leading language programs in a changing world: An ecological approach. Emerald.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Pennington, Martha Carswell, και Barbara Jean Hoekje. Leading Language Programs in a Changing World: An Ecological Approach. Bingley, UK: Emerald, 2010.

Παραπομπή σε μορφή MLA (8th εκδ.)

Pennington, Martha Carswell, και Barbara Jean Hoekje. Leading Language Programs in a Changing World: An Ecological Approach. Emerald, 2010.