New York (State). Department of Health. (1918). Public health nursing number. [N.Y. State Dept. of Health].
Chicago-referens (17:e uppl.)New York (State). Department of Health. Public Health Nursing Number. [Albany]: [N.Y. State Dept. of Health], 1918.
MLA-referens (8:e uppl.)New York (State). Department of Health. Public Health Nursing Number. [N.Y. State Dept. of Health], 1918.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.