Não informado. (1967). International Social Security Review. International Social Security Association.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. International Social Security Review. Geneva, Suíça: International Social Security Association, 1967.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. International Social Security Review. International Social Security Association, 1967.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.