Cita APA (7a ed.)

O Máille, T., & Breathnach, M. (1931). Converstional course Irish (3rd ed.). Linguaphone Institute.

Cita Chicago Style (17a ed.)

O Máille, Tomás, y Micheál Breathnach. Converstional Course Irish. 3rd ed. London: Linguaphone Institute, 1931.

Cita MLA (9a ed.)

O Máille, Tomás, y Micheál Breathnach. Converstional Course Irish. 3rd ed. Linguaphone Institute, 1931.