Não informado. (1997). Reference & User Services Quarterly. American Library Association.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Reference & User Services Quarterly. Chicago, Ill: American Library Association, 1997.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Reference & User Services Quarterly. American Library Association, 1997.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.