Não informado. Social service quarterly. National Council of Social Service.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Social Service Quarterly. London: National Council of Social Service.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Social Service Quarterly. National Council of Social Service.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.