Instituto Brasileiro de Informação em Ciência e Tecnologia

Παραπομπή σε μορφή APA (7η εκδ.)

Não informado. (1934). Speech Monographs. National Association of Teachers of Speech.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Não informado. Speech Monographs. Ann Arbor, Mich: National Association of Teachers of Speech, 1934.

Παραπομπή σε μορφή MLA (8th εκδ.)

Não informado. Speech Monographs. National Association of Teachers of Speech, 1934.