Não informado. (1972). Health Services Reports. Health Services and Mental Health Administration.
Chicago (17e ed.) BronvermeldingNão informado. Health Services Reports. Rockville, Md: Health Services and Mental Health Administration, 1972.
MLA (8e ed.) BronvermeldingNão informado. Health Services Reports. Health Services and Mental Health Administration, 1972.
Let op: Deze citaties zijn niet altijd 100% accuraat.