Não informado. (1958). Proceedings of the Social Statistics Section. American Statistical Association.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Proceedings of the Social Statistics Section. Washington: American Statistical Association, 1958.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Proceedings of the Social Statistics Section. American Statistical Association, 1958.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.