Não informado. (1971). American Journal of Public Health. American Public Health Association.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. American Journal of Public Health. Washington: American Public Health Association, 1971.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. American Journal of Public Health. American Public Health Association, 1971.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.