Não informado. (1972). Health Services Reports. Health Services and Mental Health Administration.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Health Services Reports. Rockville, Md: Health Services and Mental Health Administration, 1972.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Health Services Reports. Health Services and Mental Health Administration, 1972.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.