Παραπομπή σε μορφή APA (7η εκδ.)

Irwin, J. V., Wong, S. P., & Beasley, D. S. (1983). Phonological development in children 18 to 72 months. Southern Illinois University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Irwin, John V., Seok P. Wong, και Daniel S. Beasley. Phonological Development in Children 18 to 72 Months. Carbondale: Southern Illinois University Press, 1983.

Παραπομπή σε μορφή MLA (8th εκδ.)

Irwin, John V., et al. Phonological Development in Children 18 to 72 Months. Southern Illinois University Press, 1983.