Não informado. (1940). Midwives Chronicle and Nursing Notes. Royal College of Midwives.
Chicago-referens (17:e uppl.)Não informado. Midwives Chronicle and Nursing Notes. London: Royal College of Midwives, 1940.
MLA-referens (8:e uppl.)Não informado. Midwives Chronicle and Nursing Notes. Royal College of Midwives, 1940.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.