Não informado. (1915). Bulletin of the Public Affairs Information Service. Public Affairs Information Service.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Bulletin of the Public Affairs Information Service. New York: Public Affairs Information Service, 1915.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Bulletin of the Public Affairs Information Service. Public Affairs Information Service, 1915.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.