Não informado. (1962). Cancer News. National Cancer Association of South Africa.
Chicago-viite (17. p.)Não informado. Cancer News. Johannesburg, Africa do Sul: National Cancer Association of South Africa, 1962.
MLA-viite (8. p.)Não informado. Cancer News. National Cancer Association of South Africa, 1962.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.