Instituto Brasileiro de Informação em Ciência e Tecnologia

Παραπομπή σε μορφή APA (7η εκδ.)

Não informado. (1955). Public Relations Quarterly. Public Relations Quarterly.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Não informado. Public Relations Quarterly. Rhinebeck, NJ: Public Relations Quarterly, 1955.

Παραπομπή σε μορφή MLA (8th εκδ.)

Não informado. Public Relations Quarterly. Public Relations Quarterly, 1955.