Não informado. (1971). IARC Scientific Publications. International Agency for Research on Cancer.
Chicago-referens (17:e uppl.)Não informado. IARC Scientific Publications. Lyon, França: International Agency for Research on Cancer, 1971.
MLA-referens (8:e uppl.)Não informado. IARC Scientific Publications. International Agency for Research on Cancer, 1971.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.