Παραπομπή σε μορφή APA (7η εκδ.)

Ibarra, F., & Coelho, A. j. a. (1943). Brazilian Portuguese self-taught. Random house.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ibarra, Francisco, και Arthur joint author Coelho. Brazilian Portuguese Self-taught. New York: Random house, 1943.

Παραπομπή σε μορφή MLA (9th εκδ.)

Ibarra, Francisco, και Arthur joint author Coelho. Brazilian Portuguese Self-taught. Random house, 1943.