Não informado. (1943). Canadian Journal of Public Health. Canadian Public Health Association.
Chicago-referens (17:e uppl.)Não informado. Canadian Journal of Public Health. Ottawa: Canadian Public Health Association, 1943.
MLA-referens (8:e uppl.)Não informado. Canadian Journal of Public Health. Canadian Public Health Association, 1943.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.